- published: 14 Apr 2017
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Sum may refer to:
As an acronym, SUM may refer to:
A number is a mathematical object used to count, measure, and label. The original examples are the natural numbers 1, 2, 3, and so forth. A notational symbol that represents a number is called a numeral. In addition to their use in counting and measuring, numerals are often used for labels (as with telephone numbers), for ordering (as with serial numbers), and for codes (as with ISBNs). In common usage, the term number may refer to a symbol, a word, or a mathematical abstraction.
In mathematics, the notion of number has been extended over the centuries to include 0, negative numbers, rational numbers such as and , real numbers such as and , complex numbers, which extend the real numbers by including , and sometimes additional objects. Calculations with numbers are done with arithmetical operations, the most familiar being addition, subtraction, multiplication, division, and exponentiation. Their study or usage is called arithmetic. The same term may also refer to number theory, the study of the properties of the natural numbers.
Khan Academy is a non-profit educational organization created in 2006 by educator Salman Khan with the aim of providing a free, world-class education for anyone, anywhere. The organization produces short lectures in the form of YouTube videos. In addition to micro lectures, the organization's website features practice exercises and tools for educators. All resources are available for free to anyone around the world. The main language of the website is English, but the content is also available in other languages.
The founder of the organization, Salman Khan, was born in New Orleans, Louisiana, United States to immigrant parents from Bangladesh and India. After earning three degrees from the Massachusetts Institute of Technology (a BS in mathematics, a BS in electrical engineering and computer science, and an MEng in electrical engineering and computer science), he pursued an MBA from Harvard Business School.
In late 2004, Khan began tutoring his cousin Nadia who needed help with math using Yahoo!'s Doodle notepad.When other relatives and friends sought similar help, he decided that it would be more practical to distribute the tutorials on YouTube. The videos' popularity and the testimonials of appreciative students prompted Khan to quit his job in finance as a hedge fund analyst at Connective Capital Management in 2009, and focus on the tutorials (then released under the moniker "Khan Academy") full-time.
In mathematics, the natural numbers are those used for counting (as in "there are six coins on the table") and ordering (as in "this is the third largest city in the country"). In common language, words used for counting are "cardinal numbers" and words used for ordering are "ordinal numbers".
Some authors begin the natural numbers with 0, corresponding to the non-negative integers 0, 1, 2, 3, …, whereas others start with 1, corresponding to the positive integers 1, 2, 3, …. Texts that exclude zero from the natural numbers sometimes refer to the natural numbers together with zero as the whole numbers, but in other writings, that term is used instead for the integers (including negative integers).
The natural numbers are the basis from which many other number sets may be built by extension: the integers, by including an additive inverse (-n) for each natural number n (and zero, if it is not there already, as its own additive inverse); the rational numbers, by including a multiplicative inverse (1/n) for each integer number n; the real numbers by including with the rationals the (converging) Cauchy sequences of rationals; the complex numbers, by including with the real numbers the unresolved square root of minus one; and so on. These chains of extensions make the natural numbers canonically embedded (identified) in the other number systems.
Excel may refer to:
Read this too: http://www.bradyharanblog.com/blog/2015/1/11/this-blog-probably-wont-help More links & stuff in full description below ↓↓↓ EXTRA ARTICLE BY TONY: http://bit.ly/TonyResponse The sum of all natural numbers (from 1 to infinity) produces an "astounding" result. ANOTHER PROOF & EXTRA FOOTAGE: http://youtu.be/E-d9mgo8FGk MORE: http://youtu.be/0Oazb7IWzbA NY Times article on this: http://nyti.ms/1iftqSv Tony Padilla and Ed Copeland are physicists at the University of Nottingham. They talk physics at our sixty symbols channel: http://www.youtube.com/sixtysymbols Grandi's Series: 1-1+1-1.... http://www.youtube.com/watch?v=PCu_BNNI5x4 Read more about divergent series: http://en.wikipedia.org/wiki/Divergent_series We also here that Chapter XIII of Konrad Knopp's book, "Theory and ...
This is the second half of a lesson, watch the first half here: http://youtu.be/yudhkUUzAgY This is a well-known and hugely controversial result. The "proof" I've demonstrated is not the only way to show it - there are far more sophisticated and convincing ways to do it - but suffice to say that I went through it to raise questions and provoke thought rather than to make a statement about its validity or otherwise! Hope it makes you think.
Can learn how to sum in the excel
MAIN VIDEO IS AT: http://youtu.be/w-I6XTVZXww More links & stuff in full description below ↓↓↓ Ed Copeland and Tony Padilla are physicists at the University of Nottingham. Support us on Patreon: http://www.patreon.com/numberphile NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile Videos by Brady Haran Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/ Brady's latest videos across all channels: http://www.bradyharanblog.com/ Sign up for (occasional) emails: http://eepurl.com/YdjL9 Numberphile T-Shirts: https://te...
Sum of Consecutive Odd Integers Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/More-equation-practice/e/integer_sums?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Watch the next lesson: https://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/More-equation-practice/v/2003-aime-ii-problem-1?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Missed the previous lesson? https://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/More-equation-practice/v/sum-consecutive-integers?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 shortha...
Subscribe Now: http://www.youtube.com/subscription_center?add_user=ehoweducation Watch More: http://www.youtube.com/ehoweducation Finding the sum, difference, product and quotient is something that you do by examining two key numbers. Find the sum, difference, product or quotient with help from an expert in computers in this free video clip. Expert: Stefan Robert Filmmaker: Alexis Guerreros Series Description: Grade school math can still encompass some pretty advanced topics. Learn about answers to grade school math questions with help from an expert in computers in this free video series.
Download workbook: http://people.highline.edu/mgirvin/ExcelIsFun.htm See Mr Excel and excelisfun use two methods to add the numbers from cells that have both numbers and text. See these tricks: 1. LEFT and IF Functions to extract numbers and then add 2. Left function and then the plus symbol to add numbers that are text (because SUM Function ignores text, but plus symbol does not 3. Single cell array formula that uses IF LEFT and SUM 4. Text To Columns and Custom Number Formatting 5. Apply General Number Format with: Ctrl + Shift + Enter
A little trick to sum Fibonacci numbers. Try it out.
This video demonstrates how to using the Excel's SUM function with a range that covers multiple tabs. The method will work with any function, not just SUM.
http://ItsMyAcademy.com/arithmetic-sequences/ For Free Complete Video Tutorial on Sequence & Series. For more videos on sequence and series. To Find the sum of odd numbers we have to first make an arithmetic sequence or arithmetic series then we can easily find the sum of odd numbers from sum of n term formula of arithmetic sequence. its is simple . In this video we are dealing with such problems. Here we need to find the sum of odd numbers from 0 to50 using the sum of n term formula of arithmetic sequence. To do so we will first arrange the all odd numbers between 0 to 50 in increasing order then taking 1 as first term and 49 as last term we will make an arithmetic series. By using nth term formula of arithmetic sequence we will get the total number of terms of the sequence and then by ...
In this video learn how to use Solver to find 2 numbers that total to a Value in a given range of numbers. this might be useful in some bookkeeping or accounting problems. sample file http://simpletek.ca/files/excel-2013-files/ Solver Video link https://www.youtube.com/watch?v=oBihW1Xp_GY
Adding numbers from multiple sheets in a different sheet in Excel 2010, also works with Excel 2007 and 2013. Formula n on how to SUM cell values from different sheets. Microsoft Office Excel Tutorial
Understanding the logic behind the formula develops critical thinking skills. Even the most complex math problems seem simple when solved using logic. This other side of math is rather fascinating.
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...
Take cubes in an amount equal to the square of an integer. It can be laid out square of them. Take five such squares for the first five natural numbers. Place them on top of each other and stick together. Receive the item, like a ladder. Three of these items can be attached to each other and have a shape similar to a parallelepiped with a protrusion. The other three parts are formed in a similar shape. Combining them, we get a box with no voids. The volume of the parallelepiped, in terms of number of blocks is equal, on the one hand, the product of the number of blocks included in each direction, and on the other hand, the sum of squares of the first five digits, multiplied by six. From this we can deduce the general hypothesis about the sum of the squares of the first n natural numbers. S...
http://www.freemathvideos.com In this video series I show you how to solve a word problem by first understanding the 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. I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exaclty how to solve math problems step by step. The problems are done in real time and in front of a regular classroom. These videos are intended to help you learn how to solve math problems, review how to solve a math problems, study for a test, or finish your homework.I...
Sum columns or rows in an Excel spreadsheet by highlighting the row or column and clicking auto sum. Add columns or rows in an Excel spreadsheet with tips from an assistant certified public accountant in this free video on Microsoft Excel. Expert: Amar Enhsaihan Bio: Amar Enhsaihan is an assistant certified public accountant (CPA) and works with Excel applications everyday on his job. Filmmaker: Bing Hu
Create your personal learning account. Register for FREE at http://www.deltastep.com DeltaStep is a social initiative by graduates of IIM-Ahmedabad, IIM-Bangalore, IIT-Kharagpur, ISI-Kolkata, Columbia University (USA), NTU (Singapore) and other leading institutes. At DeltaStep, we understand that just like every child has a unique face, a unique fingerprint; he has a unique learning ability as well. Hence we have built an intelligent adaptive learning system that delivers a tailor-made learning solution and helps a student to learn at his own pace because when it comes to learning, one size does not fit all. Learn from 1000s of such interesting videos, practice from more than 1,00,000 questions, learn complex concepts through games, take timed tests, get detailed reports & in-depth analy...
Find The Sum Of 'n' Consecutive Even Numbers. Makes is so much easier to put these numbers together! Now try adding up a sequence of even numbers! Good luck! Our YouTube Channels: English Channel: https://www.youtube.com/user/APPUSERIES Hindi Channel: https://www.youtube.com/user/APPUSERIESHINDI Kannada Channel: https://www.youtube.com/user/APPUSERIESKANNADA Tamil Channel: https://www.youtube.com/user/APPUSERIESTAMIL Telugu Channel: https://www.youtube.com/user/APPUSERIESTELUGU Gujarati Channel: https://www.youtube.com/user/APPUSERIESGUJARATI Marathi Channel: https://www.youtube.com/user/APPUSERIESMARATHI Sindhi Channel: https://www.youtube.com/user/APPUSERIESSINDHI Bengali Channel: https://www.youtube.com/user/APPUSERIESBENGALI Academy Channel: https://www.youtube.com/user/AppuSeriesAcad...
The video offers a short tutorial on how to sum cells in Excel when value changes in another column.
This video explains how the =SUM and =OFFSET functions can be combined to write a formula that will sum a specific number of cells. Template available for download at this link: http://www.asimplemodel.com/reference/78/excel-trick-sum-a-specific-number-of-cells/
Optimization is explained completely in this calculus video. I also provided the links for my other optimization videos as well. Optimization - "minimum fence required" example https://www.youtube.com/watch?v=kV3K4Ppz6fw Optimization - "Maximum volume of box" example https://www.youtube.com/watch?v=no4Ph76kNdM Optimization - "Minimum time to cross river" example https://www.youtube.com/watch?v=7bFSjr9lOhE Optimization - "Maximum profit" business example https://www.youtube.com/watch?v=yIRFON453Cg YouTube Channel: http://Youtube.com/MathMeeting Website: http://MathMeeting.com
Understanding the logic behind the formula develops critical thinking skills. Even the most complex math problems seem simple when solved using logic. This other side of math is rather fascinating.
In this video we shall discuss TRICKS AND SHORTCUT to solve NUMBER SYSTEM high level questions in very less time and with accuracy. Most of the exams including SBI PO, IBPS,CLERK, RAILWAYS,SSC CGL, SBI PO 2017, BANK PO, RRB PO, RBI CLERK, SSC CGL, LIC,RAILWAYS, RBI and other competitive exams consist of questions from this topic and many students facing difficulty while solving such questions. So i tried to make the task easier. You will definitely find change in your speed and accuracy while solving these type of questions. In this maths tricks video we diacussan easy way to sum of even numbers... Here you can: ● Learn Fast Maths Tricks. ● Learn How to solve sum of even numbers in 3 second. ● Learn How to calculate sum of even number. Number system formula:-https://youtu.be/Hv8uI...
Sum only positive or negative numbers in a range with formulas. In Excel, the SUMIF function can help you to add up only the positive values or negative values. You can apply this formula as this: 1. To learn more about this function, read use sumifs() to sum by multiple conditions in excel only positive or negative numbers a range with formulas. Hello, i'm working with a table that has total order and receivedhow can i exclude negative values from my pivot table? . Can it be done? Thanks. You can break down the values even further, returning total units sold, returns, and net sold for each person by using sumifs(). A31 needs to sum only the positive numbers and a32 negative i also have text in every other column that do not want excel count dec 5, 2014 alma has a worksheet of data contain...
This video explains how to find the sum of numbers 1 to 100, and other consecutive numbers, within 10 seconds. All it takes is a simple formula which the video explains how to use. This formula works for other consecutive numbers, too, and not just 1 to 100. Follow Math Haven on Facebook and like Math Haven's page on Instagram. Facebook: facebook.com/mathematicshaven Instagram: @mathhaven
अनलिमिटेड सवाल पूछने के लिये डाउनलोड करे डाउटनट येप - https://goo.gl/9WZjCW दो संख्याओं का योग 95 है। यदि एक दूसरे से 15 तक अधिक हो जाता है, तो संख्याओं को ढूंढें। To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW Sum of two numbers is 95. If one exceeds the other by 15, find the numbers.
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6-C Program that displays first five numbers and their sum using while loop in English [===See My Other Programming Videos===] 1-C Program to explain the concept of overflow and underflow in C https://www.youtube.com/watch?v=-ncMqLNTpsg&index=1&list=PLXkevm5xDEIrZqUF0yAgYLw6OluJVPemH 2-C Program to print ASCII values using C Programming https://www.youtube.com/watch?v=fnp_CuqX_NA&index=2&list=PLXkevm5xDEIrZqUF0yAgYLw6OluJVPemH 3-C Program to perform all mathematical Operations in C https://www.youtube.com/watch?v=VA4ijib-_no&index=3&list=PLXkevm5xDEIrZqUF0yAgYLw6OluJVPemH 4-C Program to display a message five times on the screen using while loop https://www.youtube.com/watch?v=fnMHpDRK7D4 Please Like | Share | Comment and Subscribe My Channel
The video offers a short tutorial on how to sum cells in Excel when value changes in another column.
MAIN VIDEO IS AT: http://youtu.be/w-I6XTVZXww More links & stuff in full description below ↓↓↓ Ed Copeland and Tony Padilla are physicists at the University of Nottingham. Support us on Patreon: http://www.patreon.com/numberphile NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile Videos by Brady Haran Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/ Brady's latest videos across all channels: http://www.bradyharanblog.com/ Sign up for (occasional) emails: http://eepurl.com/YdjL9 Numberphile T-Shirts: https://te...
In this lesson, we learn to do math with Textboxes and some tricks to avoid error messages. **Limited Offer** Learn to Make Excel Do Your Work For You with The Ultimate Excel Programmer Course – Get the Full 9+ Hour Premium Course for 75% off using coupon code: https://www.udemy.com/ultimate-excel-programmer/?couponCode=2016YOUTUBE75 Click Now to Order and get Lifetime Access to Course, Workbooks, Updates and Support! ------------------------ Create Your Own Barcode Lookup System Using Excel VBA. Learn to Make Your Own Barcode Labels the Easy way and have fun with Barcode Scanners to Automate your Workflow! In this project-driven Course, you’ll learn to Build your own Custom Inventory System with Step-By-Step video instructions. This goes in depth into some advanced Userform strategies th...
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This Numbers Tutorial covers all the basics of Apple’s spreadsheet software which competes with Microsoft Excel. If you'd like to skip to the various sections here is the time code for each segment: Using Numbers Templates: 00:01:05 Customizing Templates: 00:03:51 Top Menu Items: 00:05:57 Formula Basics: 00:15:53 Formatting Numbers: 00:18:06 Basic Sorting: 00:19:19 Fitting Cells: 00:20:01 Merging Cells: 00:20:54 Resizing Rows & Columns: 00:21:25 Repetitive Data: 00:22:09 Additional Resources: 00:23:29 Links to Websites/Products Mentioned: Additional Numbers Templates: http://iworkcommunity.com Mail Merge Apple Script: http://bit.ly/17IYZ7o Using AppleScript to Mimic Macros: http://youtu.be/2pOuzQwhGL8 Link to Fiverr: http://vnlink.co/SJZbpsb Microsoft Office 2011 for Mac: http://amzn.to/...
How a certain perspective on what the Riemann zeta function looks like can motivate what it might mean beyond its domain of convergence. One month free audible trial, I recommend "The Art of Learning": https://www.audible.com/3blue1brown Support on patreon, and get early access to future "Essence of" series: https://www.patreon.com/3blue1brown There are posters for this visualization of the zeta function at http://3b1b.co/store Music by Vince Rubinetti: https://soundcloud.com/vincerubinetti/riemann-zeta-function Check out some of Vince's other work here: http://www.vincentrubinetti.com/ For those who want to learn more about complex exponentiation, here are a few resources: - My video on the topic: http://youtu.be/mvmuCPvRoWQ - Mathologer's: https://youtu.be/-dhHrg-KbJ0 - Better Expl...
This trigonometry video tutorial explains how to use the sum and difference identities / formulas to evaluate sine, cosine, and tangent functions that have angles that are not commonly found in the unit circle. Examples include angles both in degrees and radians.
Confused 1+2+3+…=-1/12 comments originating from that infamous Numberphile video keep flooding the comment sections of my and other math YouTubers videos. And so I think it’s time to have another serious go at setting the record straight by having a really close look at the bizarre calculation at the center of the Numberphile video, to state clearly what is wrong with it, how to fix it, and how to reconnect it to the genuine math that the Numberphile professors had in mind originally. This is my second attempt at doing this topic justice. This video is partly in response to feedback that I got on my first video. What a lot of you were interested in were more details about the analytic continuation business and the strange Numberphile/Ramanujan calculations. Responding to these requests, ...
A story of pi, prime numbers, and complex numbers, and how number theory braids them together. Check out Remix careers: https://www.remix.com/jobs The fact that only primes that are one above a multiple of four can be expressed as the sum of two squares is known as "Fermat's theorem on sums of two squares": https://goo.gl/EdhaN2 Special thanks to the following patrons: http://3b1b.co/leibniz-thanks ------------------ 3blue1brown is a channel about animating math, in all senses of the word animate. And you know the drill with YouTube, if you want to stay posted about new videos, subscribe, and click the bell to receive notifications (if you're into that). If you are new to this channel and want to see more, a good place to start is this playlist: http://3b1b.co/recommended Various s...
Highline College Busn 216 Class: Computer Applications taught by Michael Girvin. Download Excel Start File: Download File: https://people.highline.edu/mgirvin/YouTubeExcelIsFun/EB03-CountingAddingWithCriteria.xlsx Download Excel Finished File: Download File: https://people.highline.edu/mgirvin/YouTubeExcelIsFun/EB03-CountingAddingWithCriteriaFinished.xlsx Download Full Written Notes: https://people.highline.edu/mgirvin/YouTubeExcelIsFun/Office2016Class15-ExcelBasics03-IntroductionToExcel03.pdf Class web page link: https://people.highline.edu/mgirvin/AllClasses/216v2016/Content/04Excel/Excel2016.htm Topics in this video: 1. (00:01) Introduction 2. (00:41) Different kinds of counting and adding 3. (02:28) Function Drop-down and screen tips to learn which function to use 4. (04:05) COUNT Func...
المحاضرة رقم 9 في الـ C Programming Language لشرح فكرة الـ sum and max بالتوفيق للجميع
NIM is the modern name of an ancient game which features prominently in the classic movie "Last year at Marienbad". Follow the Mathologer and become an invincible NIM black belt by mastering the game's cute binary winning strategy. Link to our Mathematical Movie database mentioned in the video: http://www.qedcat.com/moviemath Enjoy! Burkard Polster and Giuseppe Geracitano