Functions

Need to know how to determine the equations of trigonmetric functions by inspecting their graphs? Learn how. Learn how to use trigonometric functions to calculate the sides of a right triangle. Need to know how to solve a matrix-form linear equation in algebra? From Ramanujan ...more

Need help figuring out how to calculate the slant asymptote of a rational function? Learn how with 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, than ...more

This video demonstrates how to use the Excel function ATAN to determine the inverse trigonometric tangent function in a spreadsheet program.

In this tutorial, we learn how to determine if you have a function. You will start off with two functions and their points. The 'x' values make up the domain of the function and the 'y' values make up the range. The input values are the domain and the output are the range. If ...more

Use the Excel Vlookup function in Microsoft Excel 2007 to look up data in a table. This tutorial looks up the level and value of a product from a stock list using the Vlookup function in Excel. To use the Vlookup function in Excel 2007: 1. Click on the Formulas tab on the ri ...more

In this tutorial the instructor shows how to complete the square to graph a quadratic function using transformations. You can do this by transforming your equation in a series of steps. First make the coefficient of the square term to one by pulling out its numerical coefficie ...more

New to 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 Excel tutorial from ExcelIsFun, the 234th installment in their series of digital spreadsheet magic tricks, you'll learn how to convert between degr ...more

Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 90th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll see a complicated average calculation with mult ...more

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 22nd installment in their series of digital spreadsheet magic tricks, you'll learn how to use the ...more

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 I ...more

This video shows us how to use the following functions in Excel: average, count, counta, min, max, and sum. First, start off by create a set of numbers to work with. After that, click on an empty cell that you want to use for the functions. To do an average, click on the funct ...more

Interested in becoming better acquainted with the sixth version of Apple's popular iPod Nano? This home-computing how-to from the folks at MacMost will teach you everything you'll need to know. For more information, including step-by-step instructions, and to get started using ...more

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 d ...more

In this how-to video the person gives a detailed evaluation of the functions of the ti-89 calculator. The video is a short but informative look at the Ti-89 calculator. During the video the person shows a difficult math problem and shows how to use the Ti-89 calculator to solv ...more

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 ...more

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 whic ...more

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 605th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the ...more

Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 48th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn how to use the VLOOKUP, ISTEXT, ISBLANK, ...more

If you're having a little trouble operating your newly purchased Samsung Instinct cell phone, let Sprint help you out. This Sprint video mobile phone tutorial takes you through every step necessary to fully familiarize yourself with the Instinct cell phone by Samsung. This ins ...more

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 13th installment in his series of Excel array formula ser ...more

In order to make furniture out of old cardboard boxes, you will need cardboard boxes, rods, nuts, and washers. Cut many pieces of cardboard in the shape of an L. When you have enough cut pieces to make a chair the size that you want, begin fastening the pieces together, by pu ...more

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.

Are you looking for a way to make your Microsoft Excel formulas simpler, faster and more efficient? If so, you're in the right place. With this free video lesson from everyone's favorite digital spreadsheet guru, YouTube's ExcelsFun, the 3rd installment in his "Excel Formula E ...more

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 145.5th installment in their series of digital spreadsheet magic tricks, you'll learn how to a for ...more

This tutorial shows the use of the Excel program PROPER. This capitalizes the first letter of every word of a text stream in a spreadsheet program.

New to Microsoft Excel 2010? Looking for a few good tips and tricks? Look no further. In this free video tutorial from everyone's favorite MS Excel guru, YouTube's ExcelIsFun, the 6th installment in his series of Excel 2010 video tutorials, you'll learn how to use the new NORM ...more

There are many functions in Microsoft Excel. One function that people rarely use is the Repeat function or REPT. In this video, an example used is a chart of people and their sales of a certain item. Just looking at the numbers, it is hard to compare the different sales easily ...more

Create a table with sales data with this video. Insert the values in the table. Just set the name as 'sd' that means of sales data. Just imagine we have columns A to J. So start values with A2 and end with J9. In menu bar type as A2 to J9. It's just as to select as a table wi ...more

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 306th installment in their series of digital spreadsheet magic tricks, you'll learn how to use MCO ...more

This video tells us the method to use the WORKDAY & WORKDAY.INTL functions in Excel. These functions are used to find a workday after a finite number of workdays in the future. WORKDAY uses Saturday and Sunday as off days. Its syntax is WORKDAY(start date, days, [holidays]). ' ...more

New to Microsoft Excel 2010? Looking for a few good tips and tricks? Look no further. In this free video tutorial from everyone's favorite MS Excel guru, YouTube's ExcelIsFun, the 3rd installment in his series of Excel 2010 video tutorials, you'll learn how to use Excel's new ...more

Watch this video to learn how to use void functions with C++. The video also covers the use of more than one return statement, immediate return, and variable scope/visibility. Part 1 of 2 - How to Use void functions with C . Part 2 of 2 - How to Use void functions with C .

New to 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 Excel tutorial from ExcelIsFun, the 248th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the PERCENTILE a ...more

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 706th installment in their series of digital spreadsheet magic tricks, you'll learn how to to use ...more

As you might guess, one of the domains in which Microsoft Excel really excels is finance math. Brush up on the stuff for your next or current job with this how-to. In this tutorial from everyone's favorite digital spreadsheet guru, YouTube's ExcelIsFun, the 35th installment in ...more

This video demonstrates how to do anti-differentiate functions with radicals in calculus. To simply problems, try to substitute. For example, in the problem, the integral of x times the square root of x plus 2 dx. You can substitute w for everything underneath the radical: i.e ...more

Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you're in the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 11th installment in his "Highline Excel Cla ...more

The Canon EOS 7D can be fine-tuned to adjust its auto focus to suit nearly any subject. See how you can customize your AF functions to get the best focusing options needed for your desired result. This video breaks down everything. AF Custom Functions: • Setting the AI Servo ...more

Want to know everything about your new Motorola Droid X from Verizon Wireless? This three-part video review goes through all the features of the Droid X, showing you how to use everything on the Android smartphone. It's got a 4.3-inch touchscreen and HD video capability, somet ...more

Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you're in the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 7th installment in his "Highline Excel Clas ...more

Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 55th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn how to use the Excel 2007 remove duplicat ...more

If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's Excel ...more

In this video tutorial, viewers will learn how to create a table for the VLOOKUP function in Excel. Create a dynamic table for the VLOOKUP function as well as a dynamic lookup area so that as you add new data or columns to the Lookup table. Create dynamic ranges using the Exce ...more

In this clip, learn how to access and use hidden and advanced functions on the iPad keyboard. Whether you're the proud owner of an Apple iPad or perhaps just considering picking one up, you're sure to benefit from this free video tutorial. For more information, including a det ...more

This is the demo showing how match quadratic equations in the graphs. Plug in x=0. So everything with x cannot disappear. There is only one negative three in the equations. Let's look at the equations that has the four as y in the set. One of the difference between each equati ...more

What does f(x) mean? What does g(4) mean? We explore this and more in this 3-part series, "Understanding Math Functions." Part 1 of 3 - How to Understand algebra functions. Part 2 of 3 - How to Understand algebra functions. Part 3 of 3 - How to Understand algebra functions.

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.

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 ...more

Watch to learn how to use graphs to help analyze sine, cosine, and tangent functions in trigonometry.

This is a great instructional video on how to find oblique asymptotes of rational functions. Let us take the example f(x)= x square+4x-12 over x-6. Now we have to find the horizontal or oblique asymptotes of this rational function. The higher power here is x square which is at ...more

This video demonstrates how to use the ISLEAPYEAR determining function in a spreadsheet. This determines whether a date falls in a leap year within a spreadsheet program.

Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 74th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn how to fix bad data with the CLEAN & TRIM ...more