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Complex Numbers In Polar Form De Moivre's Theorem, Products, Quotients, Powers, and nth Roots   Prec
 
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This precalculus video tutorial focuses on complex numbers in polar form and de moivre's theorem. It explains how to find the products, quotients, powers and nth roots of complex numbers in polar form as well as converting it to and from rectangular form. This video contains plenty of examples and practice problems and is useful for high school and college students taking precalculus or trigonometry. Here is a list of topics: 1. Graphing / Plotting Complex Numbers in a Complex Plane 2. Real Axis vs Imaginary Axis 3. How To Find The Absolute Value of a Complex Number 4. Complex Numbers - Rectangular Form to Polar Form 5. Converting Complex Numbers in Polar Form To Rectangular Form 6. Complex Numbers - List of Equations and Formulas 7. Finding R and Angle Theta From a and b 8. Writing Complex Numbers In Rectangular Form 9. Product of Two Complex Numbers In Polar Form Equation 10. Quotient of Two Complex Numbers In Polar Form Formula 11. Finding Products of Complex Numbers in Polar Form 12. Finding Quotients of Complex Numbers in Polar Form 13. Powers of Complex Numbers in Polar Form 14. De Moivre's Theorem - Roots of Complex Numbers in Polar Form 15. Solving Equations With Complex Numbers 16. Adding Complex Numbers in Polar Form 17. Multiplying Complex Numbers in Polar Form 18. Dividing Complex Numbers in Polar Form
Derivation of the product formula for complex numbers
 
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For more cool math videos visit my site at http://mathgotserved.com or http://youtube.com/mathsgotserved
Views: 595 maths gotserved
An Introduction to Formulas in Numbers
 
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In this tutorial, I will demonstrate some basic formulas in the popular Apple spreadsheet application known as Numbers. Using formulas in Numbers is a great way to convert raw data into useful information. Better yet, formulas allow you to know that the calculations you perform will always be accurate!
Views: 252401 Tuts+ Computer Skills
Formulas & Functions in Apple Numbers 2017 - Basic & Advanced Complete Class + extras, in 4K!
 
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A complete concise tutorial on basic & advanced functions and formulas in Apple Numbers! This complete class will allow to understand formulas/functions and use them quickly and efficiently to calculate, compare & execute numbers, values & data. The video covers all major and smaller/detailed aspects of how these equations are made and explains them clearly. So what are you waiting for? Watch the video, launch the app, and start using formulas and functions like a pro whether it be for finance, statistics or more! Please follow this link to support the channel and for more videos! Subscribe: http://www.youtube.com/subscription_center?add_user=thenabtech And please like, share and comment! The more you share, the more videos are made! Have any video suggestions? Have any questions? Make sure to leave them in the comments and we will reply! Thank you for watching!
Views: 101101 NABTECH
Euler’s Pi Prime Product  and Riemann’s Zeta Function
 
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What has pi to do with the prime numbers, how can you calculate pi from the licence plate numbers you encounter on your way to work, and what does all this have to do with Riemann's zeta function and the most important unsolved problem in math? Well, Euler knew most of the answers, long before Riemann was born. I got this week's pi t-shirt from here: https://shirt.woot.com/offers/beautiful-pi As usual thank you very much to Marty and Danil for their feedback on an earlier version of this video and Michael (Franklin) for his help with recording this video.. Here are a few interesting references to check out if you can handle more maths: J.E. Nymann, On the probability that k positive integers are relatively prime, Journal of number theory 4, 469--473 (1972) http://www.sciencedirect.com/science/article/pii/0022314X72900388 (contains a link to a pdf file of the article). Enjoy! Burkard
Views: 150007 Mathologer
Faulhaber's Formula and Bernoulli Numbers | Algebraic Calculus One | Wild Egg
 
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This is a lecture in the Algebraic Calculus One course, which will present an exciting new approach to calculus, sticking with rational numbers and high school algebra, and avoiding all "infinite processes", "real numbers" and other modern fantasies. The course will be carefully framed on careful definitions, explicit examples and concrete computations. In this lecture, we introduce Faulhaber's Polynomials, describe Jacob Bernoulli's approach to calculating these polynomials in general, and then give a novel approach to their determination, using a telescoping idea that goes back to B. Pascal, along with the power of modern linear algebra, and inverses of matrices. Along the way we will meet the famous Bernoulli numbers, and see that they also arise in a relatively simple way as a column of an inverse matrix closely related to the Pascal matrix. There is a lot to absorb in this lecture, so go slowly! The course materials will become available on Jan 1 2018 to my Patreon subscribers, so join our community at https://www.patreon.com/njwildberger.
Max product of 3 real numbers (KristaKingMath)
 
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► My Partial Derivatives course: https://www.kristakingmath.com/partial-derivatives-course Learn how to find three positive numbers with sum 100 and maximum possible product. To do this, write two equations that define the relationship between the numbers, and then use the equations together to reduce the equation of the product to just two variables. Take first-order and second-order partial derivatives. Use the first-order partial derivatives to find critical points of the function, and eliminate all critical points that don't match the criteria of the question. Then use the second-order partial derivatives in the second derivative test to verify that the remaining critical point is a maximum of the product function. ● ● ● GET EXTRA HELP ● ● ● If you could use some extra help with your math class, then check out Krista’s website // http://www.kristakingmath.com ● ● ● CONNECT WITH KRISTA ● ● ● Hi, I’m Krista! I make math courses to keep you from banging your head against the wall. ;) Math class was always so frustrating for me. I’d go to a class, spend hours on homework, and three days later have an “Ah-ha!” moment about how the problems worked that could have slashed my homework time in half. I’d think, “WHY didn’t my teacher just tell me this in the first place?!” So I started tutoring to keep other people out of the same aggravating, time-sucking cycle. Since then, I’ve recorded tons of videos and written out cheat-sheet style notes and formula sheets to help every math student—from basic middle school classes to advanced college calculus—figure out what’s going on, understand the important concepts, and pass their classes, once and for all. Interested in getting help? Learn more here: http://www.kristakingmath.com FACEBOOK // https://www.facebook.com/KristaKingMath TWITTER // https://twitter.com/KristaKingMath INSTAGRAM // https://www.instagram.com/kristakingmath/ PINTEREST // https://www.pinterest.com/KristaKingMath/ GOOGLE+ // https://plus.google.com/+Integralcalc/ QUORA // https://www.quora.com/profile/Krista-King
Views: 7608 Krista King
Mac How to: Basic Formulas & Functions in Numbers
 
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Learn how to add formulas and functions to Tables in Numbers for Mac. To get the full Numbers training app go to www.TheMacU.com. Course Contents... - Introduction to Numbers - Launching Numbers - The Numbers Interface A. Spreadsheets 1. Working with Templates 2. Tables 3. Cells 4. Basic Formulas and Functions 5. The Function Browser 6. Conditional Highlighting 7. Sort & Filter 8. Charts B. Objects 1. Introduction to Objects 2. Shape Styles 3. Arrange 4. Working with Shapes & Lines 5. Text Boxes 6. Media C. Collaborate, Share & Save 1. Comments 2. Share 3. Save & Export
Views: 85236 TheMacUdotcom
Program to calculate product of first N natural numbers in C
 
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Like, Comments, Share and SUBSCRIBE
Views: 15881 MySirG.com
How To Multiply Numbers And Algebra Equations By Drawing Lines
 
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Some people say this is "how the Japanese multiply." Others say this is "Vedic Math." I'm not sure of the origin, but this is a visual way to multiply two numbers and it does work. The video also shows how to use the same method to multiply algebraic expressions like (x + 2)(x + 3). Here's a blog post I wrote on this: http://mindyourdecisions.com/blog/2012/01/27/multiplicating-with-lines-math-trick-how-it-works/ Many people asked me to write a reference guide. So I wrote a book "Multiply Numbers By Drawing Lines." https://www.amazon.com/gp/product/1500866148/ I've made a few follow-up videos you might like. Multiply by lines (advanced examples) https://www.youtube.com/watch?v=DUop79ZKxmc Multiply by lines (why it works) https://www.youtube.com/watch?v=bL5eUQIMaek Multiply by lines (the rotation trick) https://www.youtube.com/watch?v=scCfeJhJ2TA If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions Connect on social media. I update each site when I have a new video or blog post, so you can follow me on whichever method is most convenient for you. My Blog: http://mindyourdecisions.com/blog/ Twitter: http://twitter.com/preshtalwalkar Facebook: https://www.facebook.com/pages/Mind-Your-Decisions/168446714965 Google+: https://plus.google.com/108336608566588374147/posts Pinterest: https://www.pinterest.com/preshtalwalkar/ Tumblr: http://preshtalwalkar.tumblr.com/ Instagram: https://instagram.com/preshtalwalkar/ Patreon: http://www.patreon.com/mindyourdecisions Newsletter (sent about 2 times a year): http://eepurl.com/KvS0r My Books "The Joy of Game Theory" shows how you can use math to out-think your competition. (rated 4/5 stars on 23 reviews) https://www.amazon.com/gp/product/1500497444 "The Irrationality Illusion: How To Make Smart Decisions And Overcome Bias" is a handbook that explains the many ways we are biased about decision-making and offers techniques to make smart decisions. (rated 5/5 stars on 1 review) https://www.amazon.com/gp/product/1523231467/ "Math Puzzles Volume 1" features classic brain teasers and riddles with complete solutions for problems in counting, geometry, probability, and game theory. Volume 1 is rated 4.5/5 stars on 11 reviews. https://www.amazon.com/gp/product/1517421624/ "Math Puzzles Volume 2" is a sequel book with more great problems. https://www.amazon.com/gp/product/1517531624/ "Math Puzzles Volume 3" is the third in the series. https://www.amazon.com/gp/product/1517596351/ "40 Paradoxes in Logic, Probability, and Game Theory" contains thought-provoking and counter-intuitive results. (rated 4.9/5 stars on 7 reviews) https://www.amazon.com/gp/product/1517319307/ "The Best Mental Math Tricks" teaches how you can look like a math genius by solving problems in your head (rated 4.7/5 stars on 3 reviews) https://www.amazon.com/gp/product/150779651X/ "Multiply Numbers By Drawing Lines" This book is a reference guide for my video that has over 1 million views on a geometric method to multiply numbers. (rated 5/5 stars on 1 review) https://www.amazon.com/gp/product/1500866148/
Views: 2058467 MindYourDecisions
Maximum Product for Numbers with Sum of 36 Q10
 
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Important Review on Quadratic Relations: https://www.youtube.com/watch?v=gcBxRCbRV8Y&index=22&list=PLJ-ma5dJyAqpXcFbcdw2sYrfn4rAfyaue The two numbers calculated here are 16 and 16. I think we should be more specific, and therefore, the question is extended include two different integers and then the answer should be 15 and 17. Their sum is 32 and product is 255. NOTE: At times it may be important to explain our answer, along with assumptions, even in the test paper. This video is included for your suggestions and views. Thanks!
Views: 13152 Anil Kumar
Numbers for iPad: Spreadsheet Functions and Formulas on iPad
 
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For the Complete book, App Your Way to Numbers, visit www.YourMacHelpers.com/Books Numbers has many built in functions and formulas available for use in each cell. Create your own specific formulas based off your unique information by writing your own, or choose from many common ones. To add a formula to a cell, double tap any cell and select the ( = ) option. Here is where you will be able to write your own and use some very basic functions like sum or date and time. If you require some more advanced functions tap the functions button once you have already selected the ( = ) options. The Functions button will store many of your most recently used functions and also have an extensive list of common functions broken down by categories. So whether you need to use financial, statistical, trigonometric, engineering, or durations formulas you will have some options available to you. Unsure of what each functions is or does? Tap the " i " next to a functions to get a dictionary definition and also some examples of when that function may be used. For the Complete book, App Your Way to Numbers, visit www.YourMacHelpers.com/Books OR to ask specific questions go to www.YourMacHelpers.com/Help
Views: 51928 MacHelpers
Complex Numbers and Euler's Formula | MIT 18.03SC Differential Equations, Fall 2011
 
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Complex Numbers and Euler's Formula Instructor: Lydia Bourouiba View the complete course: http://ocw.mit.edu/18-03SCF11 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 116787 MIT OpenCourseWare
Sum of first n natural numbers - Derivation of a formula
 
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Derivation of the formula in a way which is easy to understand. It will also help student to remember the formula easily. This is the foundation for next few videos on Arithmetic progression. This will also help u in solving mental ability problems asked in various competitive exams. This Method of addition is also useful in finding the sum of various Number patterns and Puzzles. For more such videos visit or Subscribe to my You Tube Channel https://www.youtube.com/MathsSmart For collaborations and business inquiries, please contact via Channel Pages: http://ChannelPages.com/MathsSmart
Views: 158948 MathsSmart
Math Antics - Multiplying Fractions
 
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Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
Views: 3097863 mathantics
Ex: Find Consecutive Numbers with a Given Product (Quadratic Equation Application)
 
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This video explains how to set-up and solve a quadratic equation that gives consecutive numbers that have a given product. http://mathispower4u.com
Views: 4384 Mathispower4u
Convert Text to Numbers or Numbers to Text
 
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Check out my Blog: http://exceltraining101.blogspot.com This video covers how to convert or change text to numbers using several methods. Also how to convert or change numbers to text using some different methods. #exceltips #exceltipsandtricks #exceltutorial #doughexcel --------------------- Excel Training: https://www.exceltraining101.com/p/training.html Excel Books: https://www.amazon.com/shop/dough
Views: 444313 Doug H
Parentheses Numbers / Catalan Numbers: Part I (Tanton Mathematics)
 
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Here is a classic puzzle: In how many ways can one arrange parentheses around a sum of N terms so that one is only ever adding two things at a time? [This is a great puzzle for students to do when they are first learning about parentheses!] It turns out to be tricky, but in this video we come up with a good way of computing these numbers. In part II of this video, we go further and find an actual explicit formula for them!
Views: 11609 DrJamesTanton
Formulas in Excel 1 - Round Numbers in Excel with Round Function to the Nearest Decimal or Integer
 
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Premium Course: https://www.teachexcel.com/premium-courses/68/idiot-proof-forms-in-excel?src=youtube Excel Forum: https://www.teachexcel.com/talk/microsoft-office?src=yt Visit https://www.TeachExcel.com for more, including Excel Consulting, Macros, and Tutorials. Round numbers in Excel using the Round Function. You will learn how to round a number to the nearest integer, to a specified number of decimals, as well as to a specified number of integers. This is a great tutorial to view to learn how to deal with numbers in Microsoft Excel and will save you a lot of time when manipulating numbers in Excel. For Excel consulting or to get the spreadsheet or macro used here visit the website http://www.TeachExcel.com There, you can also get more free Excel video tutorials, macros, tips, and a forum for Excel. Have a great day!
Views: 339204 TeachExcel
Excel Magic Trick 967: Formula To Extract Top 5 Numbers & Names, Including Ties or Duplicates
 
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Download Excel File: http://people.highline.edu/mgirvin/ExcelIsFun.htm Concepts: 1. This video is great to learn how to use a formula to extract top 5 numbers (revenues, sales, units or sports scores) and the associated names (Sales Representatives, Employees or Athlete Names) including the situation when there are ties or duplicates in the numbers. 2. What to do when VLOOKUP can't do a lookup for duplicate values or ties and it is not possible to do a concatenated helper column; meaning there are not two lookup values, but instead just one lookup value (number value from LARGE). In this Video: 1. SMALL Function Example: for Excel 2007 or earlier array formula with the functions: LARGE, COUNTIF, IF, ROWS, INDEX, SMALL and ROW. Also see: array operations, comparative operators, join symbol ampersand, and expandable ranges. 2. AGGREGATE Function Example: Excel 2010 or 2013 array formula with the functions: LARGE, COUNTIF, IF, ROWS, INDEX, AGGREGATE and ROW. Also see: array operations, comparative operators, join symbol ampersand, syntax for show nothing or empty cell or null text string and expandable ranges. 3. How Come VLOOKUP will not work 4. Find Hurdle Value for Top 5 using LARGE function 5. Count how many values should be extracted using COUNTIF function, comparative operator and Ampersand (join symbol)
Views: 145018 ExcelIsFun
Multiplying Mixed numbers
 
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Multiplying mixed numbers, step by step, example. For all free math videos visit http://Mathmeeting.com.
Views: 3000440 Math Meeting
Multiplying any two 2 digit number in 3 seconds.
 
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NextGurukul is India's leading online K-12 community. Here students, parents, teachers, principals and trustees can connect, learn and share knowledge with each other. It has a vast repository of summaries of concepts of all subjects, academic articles, ideas for projects and hands-on activities, videos and all the latest updates from the education sector. NextGurukul also provides a forum where students can get quick answers to all their doubts. You can also communicate to us via Facebook by liking our official Facebook page. Like Us on Facebook: https://goo.gl/41FQWg Connect with us on G+: https://goo.gl/MYceSn
Views: 4075758 NextGurukul
Complex Numbers Polar Form Product De Moivre's Theorem and nth Root
 
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How to sketch graph of Polar Equation: https://www.youtube.com/watch?v=ZrBS7oaIQFk&index=8&list=PLJ-ma5dJyAqq5HM9UNyzmFtx1p-6F-59q Find Product of Complex Numbers Find Quotient of Complex Numbers Examples for Product and Quotient Proof of De Moivre’s Theorem Write Polar in a + bi form Write Complex Polar Form in a + bi form Find complex cube roots of complex number.
Views: 489 Anil Kumar
Sum of Fibonacci Numbers Trick
 
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A little trick to sum Fibonacci numbers. Try it out.
Views: 295116 singingbanana
Sum of even numbers from 1 to 100 formula | Sum of first n even numbers formula
 
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Derivation of the formula in a way which is easy to understand. It will also help student to remember the formula easily. This is the foundation for next few videos on Arithmetic progression. This will also help u in solving mental ability problems asked in various competitive exams. Sum of Natural number tricks👉https://youtu.be/UTJgdohUegk Sum of Odd numbers tricks👉https://youtu.be/Y_QV_3JXVSI Simplification👉https://youtu.be/s4D0XjPrzVM Visit our Website👉https://smartstudyforcareer.com/ For Buy Best Book for any Competitive exam. Visit our Amazon Book Store👇 http://bit.ly/AmazonSSCareer Follow us on👇 Instagram👉http://bit.ly/IGssCareer FaceBook👉http://bit.ly/FBssCareer Twitter👉http://bit.ly/TssCareer Telegram👉http://bit.ly/TGssCareer Quora👉http://bit.ly/QssCareer
Views: 63647 Smart Study for Career
sum of consecutive numbers problem using equation
 
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Learn to write equation for sum of consecutive numbers. The sum of three consecutive numbers is 225. find the numbers. The trick here is to write the consecutive numbers as x, x-1 and x+1, this way the resulting equation is always simpler than if we wrote the three numbers as x, x+1 and x+2. To learn more such math lessons visit our channel youtube.com/MathsSmart or subscribe to http://www.youtube.com/MathsSmart.
Views: 23146 MathsSmart
Sum and product of rational numbers | Rational and irrational numbers | Algebra I | Khan Academy
 
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Learn that the sum or the product of two rational numbers is always a rational number. Watch the next lesson: https://www.khanacademy.org/math/algebra/rational-and-irrational-numbers/rational-and-irrational-expressions/v/proof-that-rational-times-irrational-is-irrational?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Missed the previous lesson? https://www.khanacademy.org/math/algebra/rational-and-irrational-numbers/irrational-numbers/v/recognizing-irrational-numbers?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it as a shorthand, of sorts. As opposed to having to do something over and over again, algebra gives you a simple way to express that repetitive process. It's also seen as a "gatekeeper" subject. Once you achieve an understanding of algebra, the higher-level math subjects become accessible to you. Without it, it's impossible to move forward. It's used by people with lots of different jobs, like carpentry, engineering, and fashion design. In these tutorials, we'll cover a lot of ground. Some of the topics include linear equations, linear inequalities, linear functions, systems of equations, factoring expressions, quadratic expressions, exponents, functions, and ratios. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Algebra channel: https://www.youtube.com/channel/UCYZrCV8PNENpJt36V0kd-4Q?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 151114 Khan Academy
Product & Quotient of Polar Complex Numbers
 
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I work through a couple of examples of multiplying and dividing complex numbers in polar form Find free review test, useful notes and more at http://www.mathplane.com
Views: 16363 ProfRobBob
Triangular Numbers - Introduction and formula to find nth term
 
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Learn about triangular Numbers. Learn to find nth term in a series of triangular numbers. For more videos on same topic and many more interesting videos visit or subscribe to : https://www.youtube.com/MathsSmart
Views: 76721 MathsSmart
Fast Math Tricks | Multiply 2 Digit Numbers having Same Tens Digit & Ones Digits Sum is 10
 
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Product that i had used to Prepare this Video (Affiliate Links): Sennheiser CX-275S In Ear Mobile Headphone With Mic: http://amzn.to/2eS4CXe Android Smartphone (Mi Max): http://amzn.to/2ezClb0 ___________________ In just 3 seconds learn to calculate faster than any calculator. Your can power-up your weak Math muscle and turn it into a bulging bicep. And you see math is so easy for you. Here you can: - Learn Fast Maths Multiply Tricks. - Learn How to Multiply any two number in 3 second. - Learn How to calculate multiplication of any numbers in fast way. - Learn multiply two digit by two digit numbers. - Multiply two Digit Numbers having Same Tens digit and Ones Digits Sum is 10 In this Video, I am explaining the very easy and fast maths tricks to finding the Multiplication of any number in 3 second in your mind without the help of Pen and copy or a Calculator. And I hope after watching my math tricks Video you will be able to Multiply of any number in your mind at anytime and anywhere. So please watch this Video and Learn the Tricks in easiest way. Math tricks for fast calculation in english by Jogi And You, ---------------------------------------------------- *** Do Share, Support, Subscribe *** This Video: https://youtu.be/hPKSEnnJYUE Youtube Chanal: https://www.youtube.com/channel/UCLacWd9Cygy2efoV3ahTo4g Twitter: http://www.twitter.com/JogiAndYou About : "Jogi & You" is a YouTube Channel, where you will find different types of videos generally in Hindi. New Video is Posted Randomly... :-)
Views: 5861555 Jogi And You
Derivation of the quotient formula for complex numbers
 
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For more cool math videos visit my site at http://mathgotserved.com or http://youtube.com/mathsgotserved
Views: 868 maths gotserved
Learn how to multiply two numbers in Excel and quickly copy the result
 
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http:the-excel-expert.com Download your free 25 Excel shortcuts and also the file used in this video. In this video, learn how to quickly multiply the contents of two cells together and copy the answer.
Views: 229205 Anne Walsh
EASY Method Multiply Two Numbers Ending In 5 (Fast Math Trick)
 
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Can you multiply 35 by 115 in your head? Learn this neat math trick of how to multiply two numbers that end in the digit 5. You can use it to estimate many other problems. The video also contains a proof of why the method works. Learn more in my book "The Best Mental Math Tricks." http://amzn.to/18maAdo Blog http://mindyourdecisions.com/blog/2015/09/02/multiply-numbers-ending-in-5-math-trick-new-video/#.VediyflVhBc **Thanks to Patrons! Kyle Alberto Nishikawa If you like my videos, you can support me at Patreon and get exclusive rewards: http://www.patreon.com/mindyourdecisions Connect on social media. I update each site when I have a new video or blog post, so you can follow me on whichever method is most convenient for you. My Blog: http://mindyourdecisions.com/blog/ Twitter: http://twitter.com/preshtalwalkar Facebook: https://www.facebook.com/pages/Mind-Your-Decisions/168446714965 Google+: https://plus.google.com/108336608566588374147/posts Pinterest: https://www.pinterest.com/preshtalwalkar/ Tumblr: http://preshtalwalkar.tumblr.com/ Instagram: https://instagram.com/preshtalwalkar/ Patreon: http://www.patreon.com/mindyourdecisions Newsletter (sent about 2 times a year): http://eepurl.com/KvS0r My Books "The Joy of Game Theory" shows how you can use math to out-think your competition. (rated 4/5 stars on 23 reviews) https://www.amazon.com/gp/product/1500497444 "The Irrationality Illusion: How To Make Smart Decisions And Overcome Bias" is a handbook that explains the many ways we are biased about decision-making and offers techniques to make smart decisions. (rated 5/5 stars on 1 review) https://www.amazon.com/gp/product/1523231467/ "Math Puzzles Volume 1" features classic brain teasers and riddles with complete solutions for problems in counting, geometry, probability, and game theory. Volume 1 is rated 4.5/5 stars on 11 reviews. https://www.amazon.com/gp/product/1517421624/ "Math Puzzles Volume 2" is a sequel book with more great problems. https://www.amazon.com/gp/product/1517531624/ "Math Puzzles Volume 3" is the third in the series. https://www.amazon.com/gp/product/1517596351/ "40 Paradoxes in Logic, Probability, and Game Theory" contains thought-provoking and counter-intuitive results. (rated 4.9/5 stars on 7 reviews) https://www.amazon.com/gp/product/1517319307/ "The Best Mental Math Tricks" teaches how you can look like a math genius by solving problems in your head (rated 4.7/5 stars on 3 reviews) https://www.amazon.com/gp/product/150779651X/ "Multiply Numbers By Drawing Lines" This book is a reference guide for my video that has over 1 million views on a geometric method to multiply numbers. (rated 5/5 stars on 1 review) https://www.amazon.com/gp/product/1500866148/
Views: 164154 MindYourDecisions
How to find three consecutive odd numbers with a sum of 63 - Math Help - Online Tutor
 
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Learn how to solve equations from word problems. A word problem is a real word simulation of a mathematics principle. We can solve equation(s) from a word problems by first understanding what the problem is asking. We then assign variables for our unknowns and create equations to represent our problem. We then use solving techniques to find the values of the equation. #linearequations #solveliteralequations
Views: 82561 Brian McLogan
Multiplying: 2 digits numbers (using distributive property) | 4th grade | Khan Academy
 
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This is a fun way to solve this multiplication problem. Putting the distributive property to work! Cool. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-mult-div-topic/cc-4th-area-models/e/multiplying-2-digit-numbers-with-area-models?utm_source=YT&utm_medium=Desc&utm_campaign=4thgrade Watch the next lesson: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-mult-div-topic/cc-4th-area-models/v/understanding-multiplication-through-area-models?utm_source=YT&utm_medium=Desc&utm_campaign=4thgrade Missed the previous lesson? https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-mult-div-topic/cc-4th-area-models/v/4-by-1-multiplication-with-grid?utm_source=YT&utm_medium=Desc&utm_campaign=4thgrade Grade 4th on Khan Academy: 4th grade is the time to start really fine-tuning your arithmetic skills. Not only will you be a multi-digit addition and subtraction rockstar, but you'll extend the multiplication and division that you started in 3rd grade to several digits. You'll also discover that you sometimes have something left over (called a "remainder") when you divide. In 3rd grade you learned what a fraction is. Now you'll start adding, subtracting, multiplying, and comparing them. You'll also see how they relate to decimals. On other fronts, you'll learn how to convert between different units (which is super important when comparing the size and speed of robot unicorns in different countries) and continue your journey thinking about various shapes in two dimensions. Some of the foundational concepts of geometry (like lines, rays and angles) also get introduced. As always, we'll round this out with a healthy dose of applied word problems and explorations of number patterns and properties (including the ideas of factors, multiples and prime numbers). The fun must not stop! (Content was selected for this grade level based on a typical curriculum in the United States.) About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy‰Ûªs 4th grade channel: https://www.youtube.com/channel/UC3w8CkX9EJegLVKUj0-mo8A?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 326110 Khan Academy
Minimizing the product of two real numbers
 
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► My Applications of Derivatives course: https://www.kristakingmath.com/applications-of-derivatives-course If you need more help with optimization problems, check out http://www.kristakingmath.com Optimization problems are an application of derivatives in calculus that allow us to find the local and global extrema of a function, including the local and global minima and the local and global maxima. In order to find the extrema of a function, you'll need to take the derivative of the function, set it equal to zero, and solve it for the independent variable in order to find critical numbers. These critical numbers represent potential critical points, which are the points at which the function changes direction from increasing to decreasing, or vice versa. Once you've found the critical numbers, you'll need to use the first derivative test to test each interval between the critical numbers to see where the function is increasing and where it's decreasing. If the function is increasing to the left of the critical number, and decreasing to the right of it, the critical number represents a local maximum, and possibly a global maximum. On the other hand, if the function is decreasing to the left of the critical number and increasing to the right of it, the critical number represents a local minimum, and possibly a global minimum. ● ● ● GET EXTRA HELP ● ● ● If you could use some extra help with your math class, then check out Krista’s website // http://www.kristakingmath.com ● ● ● CONNECT WITH KRISTA ● ● ● Hi, I’m Krista! I make math courses to keep you from banging your head against the wall. ;) Math class was always so frustrating for me. I’d go to a class, spend hours on homework, and three days later have an “Ah-ha!” moment about how the problems worked that could have slashed my homework time in half. I’d think, “WHY didn’t my teacher just tell me this in the first place?!” So I started tutoring to keep other people out of the same aggravating, time-sucking cycle. Since then, I’ve recorded tons of videos and written out cheat-sheet style notes and formula sheets to help every math student—from basic middle school classes to advanced college calculus—figure out what’s going on, understand the important concepts, and pass their classes, once and for all. Interested in getting help? Learn more here: http://www.kristakingmath.com FACEBOOK // https://www.facebook.com/KristaKingMath TWITTER // https://twitter.com/KristaKingMath INSTAGRAM // https://www.instagram.com/kristakingmath/ PINTEREST // https://www.pinterest.com/KristaKingMath/ GOOGLE+ // https://plus.google.com/+Integralcalc/ QUORA // https://www.quora.com/profile/Krista-King
Views: 1385 Krista King
Excel RANK Function to Compare Numbers in a List
 
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Use Excel RANK function to compare numbers in an Excel list. For example, show which student got highest test score, or which player had lowest score in a round of golf. Get the free RANK workbook from my Contextures website https://www.contextures.com/excel-functions-rank.html Also see my video on How to Break Ties with Excel Rank Function https://www.youtube.com/watch?v=_fD5vhb36j0 and Split Prize Amounts for Ties with Excel RANK function https://www.youtube.com/watch?v=a_72Y_6fYcw '-------------------------------------- Transcript for How to use the Excel RANK Function by Debra Dalgleish If you have test results, or another list of numbers in Excel, you could sort them to see which scores are at the top. But if you want to leave the list in its current order, you can use the RANK function to show the order of these scores. In cell C2, I'm going to create a RANK formula, and then copy it down to the bottom of this list, and we'll see which position each student's score is in. In cell C2, I'll start with an =, and type RANK, R-A-N-K, and an (. The first argument is the number. I have to click on the cell that has the number I want to find the rank for. In this row, it's B2. I'll type a comma. And then the reference, so what am I comparing it to? I want to compare it to all the other scores. I'll start at B2 and drag down to B11. Now I'm going to be copying this formula down to all the other rows. As I copy it down, I want it to always change the cell that it's checking, but I don't want it to change the cells that it's comparing to. It should always be B2 to B11. While I'm at the end of this reference that I just typed, on the keyboard I'm going to press the F4 key, and that makes this an absolute reference so this won't change as I copy the formula down. And I'll finish with a ) and press Enter. The score 46 is ranked 1, and I'll click on this cell, and drag the fill handle down. We can see all the other ranks. In this cell, it's now looking at B7, but it's locked into that B2 to B11 range to check the rank.
Views: 585896 Contextures Inc.
How to Find Dot and Cross Products of Complex Numbers
 
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This video is a tutorial for how to find dot (scalar) or cross (vector) product of two complex numbers. Some applications are also cited for better understanding of the viewers.
Linear Algebra Vignette 4b: Fibonacci Numbers As A Matrix Product
 
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This course is on Lemma: http://lem.ma Lemma looking for developers: http://lem.ma/jobs Other than http://lem.ma, I recommend Strang http://bit.ly/StrangYT, Gelfand http://bit.ly/GelfandYT, and my short book of essays http://bit.ly/HALAYT Questions and comments below will be promptly addressed. Linear Algebra is one of the most important subjects in mathematics. It is a subject with boundless practical and conceptual applications. Linear Algebra is the fabric by which the worlds of geometry and algebra are united at the most profound level and through which these two mathematical worlds make each other far more powerful than they ever were individually. Virtually all subsequent subjects, including applied mathematics, physics, and all forms of engineering, are deeply rooted in Linear Algebra and cannot be understood without a thorough understanding of Linear Algebra. Linear Algebra provides the framework and the language for expressing the most fundamental relationships in virtually all subjects. This collection of videos is meant as a stand along self-contained course. There are no prerequisites. Our focus is on depth, understanding and applications. Our innovative approach emphasizes the geometric and algorithmic perspective and was designed to be fun and accessible for learners of all levels. Numerous exercises will be provided via the Lemma system (under development) We will cover the following topics: Vectors Linear combinations Decomposition Linear independence Null space Span Linear systems Gaussian elimination Matrix multiplication and matrix algebra The inverse of a matrix Elementary matrices LU decomposition LDU decomposition Linear transformations Determinants Cofactors Eigenvalues Eigenvectors Eigenvalue decomposition (also known as the spectral decomposition) Inner product (also known as the scalar product and dot product) Self-adjoint matrices Symmetric matrices Positive definite matrices Cholesky decomposition Gram-Schmidt orthogonalization QR decomposition Elements of numerical linear algebra I’m Pavel Grinfeld. I’m an applied mathematician. I study problems in differential geometry, particularly with moving surfaces.
Views: 3672 MathTheBeautiful
How to use formulas add numbers in Google Sheets
 
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In this tutorial, I teach you how to use the formulas function in Google Sheets. I show you the different types of formulas like Average, and Max and Min, and how to sum everything up. I created this channel as a way to make technology that is being used at school easier to understand. TechnologyTeacher brings edTech content to the classroom. With experience teaching grades K-12 computer education, the videos on this channel will help you to better understand current technologies that are being used at school. Thank you for watching this video. Please leave a comment below if there are other videos that I can create for you to help you better understand educational technology.
Views: 26330 TechnologyTeacher
Fast Math Tricks - multiplication of two and three digit numbers.
 
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How to multiply numbers numbers calculating the fast way! Using this method you will be able to multiply any pair of two and three digit numbers with each other quickly and accurately! Become a math genius in no time at all using vedic math!
Views: 1116694 tecmath
Multiplying complex numbers | Imaginary and complex numbers | Precalculus | Khan Academy
 
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Multiplying Complex Numbers Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/precalculus/imaginary_complex_precalc/multiplying-dividing-complex/e/multiplying_complex_numbers?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus Watch the next lesson: https://www.khanacademy.org/math/precalculus/imaginary_complex_precalc/multiplying-dividing-complex/v/complex-conjugates?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus Missed the previous lesson? https://www.khanacademy.org/math/precalculus/imaginary_complex_precalc/factoring-with-complex-numbers/v/factoring-sum-of-squares?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus Precalculus on Khan Academy: You may think that precalculus is simply the course you take before calculus. You would be right, of course, but that definition doesn't mean anything unless you have some knowledge of what calculus is. Let's keep it simple, shall we? Calculus is a conceptual framework which provides systematic techniques for solving problems. These problems are appropriately applicable to analytic geometry and algebra. Therefore....precalculus gives you the background for the mathematical concepts, problems, issues and techniques that appear in calculus, including trigonometry, functions, complex numbers, vectors, matrices, and others. There you have it ladies and gentlemen....an introduction to precalculus! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Precalculus channel: https://www.youtube.com/channel/UCBeHztHRWuVvnlwm20u2hNA?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 410792 Khan Academy
Mr Excel & excelisfun Trick 154: Totals by Product Code: Numbers & Code in Same Cell!?
 
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Download workbook: http://people.highline.edu/mgirvin/ExcelIsFun.htm See Mr Excel and excelisfun deal with a single column that contains the numbers to add and the criteria for adding in the same cell: 1. (00:25 min) Mr Excel: Text To Columns and PivotTable 2. (01:10 min) Excelisfun: Helper column, SUMIF and an IF function to deliver one of teo criteria to the criteria argument in the SUMIF function 3. (03:49 min) Mr Excel: VBA Custom Function 4. (05:31 min) Excelisfun: array formula that uses LEFT, SEARCH, ISNUMBER, SUMPRODUCT and SUM function
Views: 8294 ExcelIsFun