How To: Calculate sales tax in algebra
In this math lesson we will learn how to solve math problems involving sales tax. Remember these two important formulas:
Tax Functions Search Results
How To: Speed Up & Supercharge Your HTC One
HTC pulled out all the stops when designing the HTC One M8. From it's sleek body, to it's incredible sound quality, this thing just oozes sophistication. While all of these add-ons are great, they can be incredibly taxing on the CPU, in turn causing some serious lag.
How To: Calculate and use regression functions in statistical analysis
Regression functions are a vital part of statistical analysis of populations, and if you're involved in business, science, or nearly any academic field you should understand how it works. This series of videos will show you how standard regression functions, ANOVA, ordinary least squares, and everything else you need to know.
How To: Use Your Phone's Camera to Split Bills More Easily with Friends
When going out to eat with friends, it's inevitable that one person takes charge at the end of the meal to split the bill. They whip out a pen and begin asking everyone what they ordered, carefully dividing, adding, and subtracting on the back of the receipt for everyone to use. Unfortunately, that never seems to work as intended. One person will end up paying a little more, while another will pay less.
How To: Use the Formula Builder in Microsoft Excel: Mac 2008
Excel 2008 for Mac makes it easy to create formulas for cells. You could always do it before, but now with the new Formula Builder feature, building formulas just got one step closer to simple. The Microsoft Office for Mac team shows you just how to build formulas by using the new Formula Builder in this how-to video.
How To: Solve problems with inverse functions
In this video the instructor teaches about inverse functions. Normally in inverse functions problems you are given a function that has a set of points and you are asked to find the inverse of that function. So if the function has a point in the form (x, y) then the inverse function has its points in the form of (y, x). Now when you are given a function f(x) that is in the form of x and asked to find its inverse, equate the function to y. Solve the equation to get the value of variable x in th...
How To: Graph piecewise defined functions
In this video the instructor shows how to graph a piecewise defined function. A piecewise defined function is a function that is defined in separate pieces. In these kind of functions, for different ranges of the value of x, you are given different small functions, all of which together make the whole function. This means your equation of the function is given in the form of smaller functions. Now to graph these kind of equations all you have to do is graph the individual equations in the sam...
How To: Create simple functions when programming in Python 3
In this clip, you'll learn how to create and call simple functions when coding in Python 3. Whether you're new to the Python Software Foundation's popular general purpose programming language or a seasoned developer looking to better acquaint yourself with the new features and functions of Python 3.0, you're sure to benefit from this free video programming lesson. For more information, including detailed, step-by-step instructions, watch this video guide.
How To: Use the Visual Function Builder in MapForce
MapForce includes a powerful visual function builder that lets you create new data processing functions in a graphical way using existing functions and libraries. Learn how to combine multiple separate functions that returns a single result with this tutorial.
How To: Solve problems involving functions in algebra
Need to know how to solve function problems in algebra? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to work with and solve functions.
How To: Cheat and remove the traffic on Crazy Taxi (08/17/09)
Crazy Taxi is a Facebook game that allows you to drive crazy in a cab. Watch this video tutorial to learn how to cheat and remove the traffic on Crazy Taxi (08/17/09).
Breaking: The Meta 2 Augmented Reality Headset Is Shipping
The Meta 2 developer kit has finally begun shipping! Gary Garcia, the senior director of customer success at Meta, just sent out an email that they are shipping out to the first round of preorder customers. Waves will be building from there, up to far higher manufacturing rates near the end of Q1 of 2017.
News: Ford Is Adding Android Auto, Apple CarPlay, & More with New Sync System
You've probably heard the old joke about how Ford is an acronym for "Found on Road Dead." Well, the Detroit automaker on Monday announced a new and much better way to help you find your parked vehicle, as well as a whole host of other features—just use your smartphone.
How To: Use functioning & static dominant chords in jazz guitar
In this video, we learn how to play Jazz guitar: Functioning & Static Dominant Chords. When you play an A7 going to a D chord, you are playing a functioning dominant, because a five chord always wants to go to a one chord. This is because of the tension in the five chord and how it resolves to the one chord. You will hear that the chord wants to go to a different chord, so make sure you understand this concept as you are playing. If the chord does go to the other, it's referred to as a functi...
How To: Use the SUMIF function with an array in Microsoft Excel
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 694th installment in their series of digital spreadsheet magic tricks, you'll learn how the SUMIF function (and COUNTIF, etc.) cannot accept arrays. If you need to sum by year from transactional data the SUMIF and YEAR functions cannot be used together. Instead we can use the SUMPRODUCT function.
How To: Work with exponential growth functions in mathematics
Exponential functions are functions which contains terms which are integers raised to the power of variables. Note that the variables are not raised to the power of integers, but the integers are raised to the power of variables. Variables raised to the power of integers are called as polynomials and are a different class of functions. But exponential functions grow very fast than polynomials with the increase in the value of the variable. To understand the growth of these functions take a si...
How To: Sketch the graph of a piecewise function
This video teaches us to draw the graph of a piecewise function. This is shown using two examples. In the first example we have 'y' equal to 'x + 2' for x less than zero and '1 - x' for x greater than equal to zero. We plot two points on the function for x less than zero and do the same for the function with x greater than equal to zero. The graph for the first function is erased for x greater than equal to zero, and the same is done for the second function for x less than zero. Note that the...
How To: Graph the absolute value of a function
This video shows the method to plot the graph of the absolute value of a function. The video shows the example of the function of cube root of 'x'. The demonstrator first plots the graph of a cube root function. This is done by taking the reference point of positive one and positive eight. The graph is drawn for both negative and positive values of 'x'. After this the graph of absolute function is drawn by taking the absolute value of the cube root function. The resultant graph comes out to b...
How To: Graph the greatest Integer or floor function
The video shows the explanation of greatest integer function. This video explains this with the help of graphs. The video first describes the basic greatest integer function. This means the greatest integer less than or equal to the number gave. The graph of this function is drawn. The video then shows the variations of this function. The first variation shows the function that replaces the 'x' coordinate with it subtracted by three. This shifts the graph to the right by three units. The seco...
How To: Solve mathematical functions and graphs
Check out this instructional math video that demonstrates how to calculate mathematical functions and graphs. In this 9th lesson, learn how to solve on SAT Algebra problems using the Official SAT Study Guide (as always). Here are the math problems and their page numbers that this video covers:
How To: Understand algebra functions
What does f(x) mean? What does g(4) mean? We explore this and more in this 3-part series, "Understanding Math Functions."
How To: Build frequency tables & histogram charts in MS Excel
Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you've come to the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 31st installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to build frequency tables and simple histogram charts in Microsoft Excel. Specifically, this video addresses the following subjects:
How To: Use the vertical line test
This test can be used to determine whether the given graph is a function or not.
Coinbase 101: Fees & Fine Print You Need to Know Before Trading Bitcoins & Other Cryptocurrencies
Coinbase is the primary go-to for many users when it comes to investing in Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), Ripple (XRP), and more, due to its user-friendly interface. But before you join them, know that the ease of use comes with a price. Coinbase charges fees for each transaction, and your bank might even add charges on top of that. Plus, there is some fine print to be aware of.
News: Malware Targets Mac Users Through Well-Played Phishing Attack
Maybe you thought sitting behind a Mac gives you special protection when it comes to getting hacked. Thanks to a a new report from Check Point, you can kiss that theory goodbye. The cyber security company just uncovered the latest strain of malware — OSX/Dok — infecting all versions of macOS (previously Mac OS X).
How To: Use formulas, functions, formula inputs and cell references in Microsoft Excel
This tutorial aimed at someone new to Microsoft Excel shows you how to navigate the basic functions of a spreadsheet. It goes over formulas, functions, formula inputs and cell references, all of which you'll need to master in order to use Excel effectively.
How To: Ignore nested subtotals with AGGREGATE in MS Excel
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 664th installment in their series of digital spreadsheet magic tricks, you'll learn how to make a calculation on a column of values that contain subtotals that you do not want to include in the calculations. The AGGREGATE function will ignore nested SUBTOTAL and AGGREGATE functions when making calculations.
How To: Use the AGGREGATE function in Microsoft Excel 2010
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 669th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the AGGREGATE function in Microsoft Excel 2010 and later. This new function is better than SUBTOTAL function because 1) the options argument set to 18 will calculate Percentile and 2) AGGREGATE can handle arrays. See how th...
How To: Apply quadratic functions in algebra
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to unpack and solve word problems that require you to apply quadratic functions in algebra.
How To: Graph and solve quadratic functions in algebra
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to find answers to quadratic function problems in intermediate algebra by graphing.
How To: Find the inverse of a function in algebra
Need a little help figuring out how to find the inverse of a function in algebra? Watch this free video lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this free math tutorial, you'll learn how to calculate the inverse of a given algebraic fun...
How To: Match lists with lookup functions in Microsoft Excel
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 607th installment in their series of digital spreadsheet magic tricks, you'll learn how to match three lists using 2 VLOOKUP functions and the AND function.
How To: Multiply matrices with the MMULT function in MS Excel
Looking for a primer on how to create and work with array formulas in Microsoft Office Excel? You've come to the right place. In this free video tutorial from everyone's favorite MS Excel guru, YouTube's ExcelIsFun, the 12th installment in his series of Excel array formula series, you'll learn how to use the array function MMULT to multiply multiple matrices in matrix algebra. (NB: This is an array function that requires the Ctrl + Shift + Enter trick.)
How To: Create a chart for a linear function of X in MS Excel
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 239th installment in their series of digital spreadsheet magic tricks, you'll learn how to create a chart for a linear function of X in Excel as well as how to use a text formula to display a function of X.
How To: Use defensive abilities while playing Fight Night Champion on the Xbox 360
If you're interested in learning how all of the defensive moves and attributes function in Fight Night Champion, take a look at this video that provides information the defensive functions of the game. If you're enjoying it on the Xbox 360, you'll be able to learn what buttons allow you to block and play defensively.
How To: Use a function generator to make waveforms for electronics projects
A function or signal generator is an electronic device that can create different types of waves and send them through a circuit without building oscillators. This video will teach you how they work and how to build a basic LED dimmer that uses one as an example.
How To: Use all the functions of a Canon 60D camera
The Canon 60D is a very popular, powerful, and cheap camera for those looking to get into high-end digital photography. If you've got one and need some help on using it's many functions, check out this video for a tutorial on the many buttons and tools in your camera.
How To: Use the TODAY and NOW functions in Microsoft Excel 2010
Learn how to make time-based calculations with the TODAY and NOW functions in MS Excel 2010. Whether you're new to Microsoft's popular digital spreadsheet application or a seasoned business professional just looking to better acquaint yourself with the Excel 2010 workflow, you're sure to be well served by this video tutorial. For more information, including step-by-step instructions, take a look.
How To: Use the DATEDIF function in Microsoft Excel 2007
Looking for a primer on how to use the DATEDIF function in MS Excel 2007? You're in luck. Whether you're new to Microsoft's popular digital spreadsheet application or a seasoned business professional just looking to better acquaint yourself with the Excel 2007 workflow, you're sure to be well served by this video tutorial. For more information, including step-by-step instructions, take a look.
How To: Use the TODAY and NOW functions in Microsoft Excel 2007
Need an introduction to Excel's useful TODAY & NOW time functions? You're in luck as this clip provides just that. Whether you're new to Microsoft's popular digital spreadsheet application or a seasoned business professional just looking to better acquaint yourself with the Excel 2007 workflow, you're sure to be well served by this video tutorial. For more information, including step-by-step instructions, take a look.