Psychological Functions Search Results

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 Train Your Python: Part 10, Making Our Own Functions

Welcome back! In the last iteration of how to train your python, we covered error detection and handling. Today we'll be diverging from this and discussing functions. More specifically, we'll be creating our own functions. First we'll need to understand exactly what a function is, then we'll get on to making our own! So, let's get started!

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.

How To: Use names in formulas and functions in Microsoft Excel

Looking for a primer on how to create and work with names 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 1st installment in his series of Excel name tricks, you'll learn to use names in formulas and functions as well as how to edit them. See how to name a cell or range of cells with this free video lesson.

How To: Use the ADDRESS function in Microsoft Excel

Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 98th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn how to use the ADDRESS function to make labels in templates easier for users to understand.

How To: Do normal probability calculations on a calculator

Probability computation is a complex process and even using a calculator can be difficult. But normal probability calculations can be performed quickly with the help of calculator once you know how to use it. So when you have to calculate a probability from a normal distribution you can use the functions on your scientific calculator. You can use the normal CDF function from you calculator to compute the area under a normal curve. The function requires lower band and upper band values, the me...

How To: Use the IF function with letter grades in Excel

This six-minute tutorial shows you how to use the logical IF function with letter grades in Excel. The video features a sample table with a sample assigned grading scheme ranging from A to F, which is a common application of the logical IF statement in Excel. After the data is added to your Excel table, use the IF function in the respective cell or column by inputting the logical test, the value if the test is true, and the value if the test is false. In addition to showing you how to use the...

How To: Solve operations on rational functions (f o g)(x)

YAYMATH In order to use rational functions in intermediate algebra, Robert Ahdoot begins by setting values to the functions f(x) and g(x). He then adds these functions together, with the equation (f+g)(x). After addition comes subtraction, using the equation (f-g)(x). And finally multiplication, which is (ftimesg)(x). This is a little more complicated, requiring distribution of a binomial across a polynomial, but it's clearly demonstrated and explained. This video explains what to do with add...

How To: Create a table for the VLOOKUP function in Excel

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 Excel Table feature and Table Formula Nomenclature for the Data Validation drop-down list, the VLOOKUP table and the MATCH table. See an IF function formula that creates new labels as new columns are added to the lookup tabl...

How To: Find the x & y intercepts of rational functions

In this tutorial the instructor shows how to find the x and y intercepts of rational functions. Finding the intercepts of a rational function is similar to finding the intercepts of other normal equations. You can find the x intercept of the equation by setting the value of y to zero and solving the equation. Similarly you can solve the y intercept by setting the value of x to zero and solving the equation. Now while solving this rational function for intercepts if you face a situation where ...

How To: Find the equation of a tangent line

This is the video about how to find the equation of a tangent line. As you may recall, a line which is tangent to a curve at a point a, must have the same slope as the curve. Therefore, the slope of the tangent is m = lim f(a + h) - f(a) h-->0 h Since the slope equation of the tangent line is exactly the same as the derivative definition, an easier way to find the tangent line is to differentiate using the rules on the function f. For example, Find the slope of a line tangent to the function ...

How To: Use YEARFRAC, INT, and DATEDIF in Excel

In this Excel magic trick video the tutor shows how to use the years worked formula using Yearfrac, Int and Datedif functions. He says that using this trick you can find out how many years some one has worked if we know his starting date and ending date i.e. he shows how to extract the difference in years directly by using formula to calculate it. He shows how to use Yearfrac function which gives the number of years in decimal form. He also shows how to extract integer from the decimal using ...

How To: Use the LARGE and SMALL 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 616th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the LARGE and SMALL functions to retrieve the 1st, 2nd, and 3rd largest values from a list. You'll also see how to do each of the following:

How To: Force a function to becom an array in Microsoft 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 39th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how if an array or range is put into a function argument that is expecting a single value, the function becomes an array and delivers an array of values instead o...

How To: Ignore hidden rows with MS Excel's AGGREGATE function

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 662nd installment in their series of digital spreadsheet magic tricks, you'll learn how to add or average while ignoring values in hidden rows. In addition you can ignore both Hidden Rows and Error Value.

How To: Use AGGREGATE instead of SUBTOTAL in MS 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 664th installment in their series of digital spreadsheet magic tricks, you'll learn how about how the new Excel 2010 AGGREGATE function that can calculate these 19 different functions depending on what number you put into the 1st argument of the AGGREGATE function. This is an improvement over the SUBTOTAL function wh...

How To: Ignore filtered values making calculations 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 665th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the AGGREGATE function to make calculations on filtered data. The SUBTOTAL function only has 11 functions, whereas the AGGREGATE has 19 plus options to ignore errors, hidden rows and nested SUBTOTAL or AGGREGATE functions.

How To: Integrate exponential functions in calculus

Looking for a primer on how to integrate exponential functions? This free video calculus lesson will teach you how. 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 study for that next big test).

How To: Graph trigonometric functions

Learn how to graph the amplitude and periods of sine and cosine functions in basic trigonometry. 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 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 h...

How To: Use VLOOKUP function formulas in Microsoft 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're in the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 7th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to work with VLOOKUP function formulas in MS Excel. Specifically, you'll see the following:

How To: Look up formulas in Excel with the CHOOSE function

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 557th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the CHOOSE function look up a formula or function depending on your drop-down selection. See also how to create combo box form controls and data validation lists with the VLOOKUP function.

How To: Graph a rational function using limits

Need help figuring out how to graph a rational function with limits? Learn how to graph a rational function using limits to find discontinuities and functional asymptotes 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, 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).

How To: Use the QUOTIENT and MOD functions in Microsoft Excel

Microsoft Office Excel 2007 spreadsheet manager is a powerful tool that enables information workers to format spreadsheets, as well as analyze and share information to make more informed decisions. In this MS Excel video tutorial, you'll learn about the QUOTIENT and MOD functions. Note that, in urder to use these functions, you'll need to install the analysis ToolPak. For more information, watch this Excel how-to.