Psychological Functions Search Results

How To: Find the inverse of a function in intermediate 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. With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to solve problems involving function inverses.

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: Convert integers to dates with Excel's DATE 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 141st installment in their series of digital spreadsheet magic tricks, you'll learn how to take the number 1 (for day one of the month) and use the DATE function to convert it to a serial number formatted as a date.

How To: Use Excel for daily interest and monthly deposits

Some savings plan pays interest 365 days in a year but you make deposit monthly. You can use Excel functions to calculate the maturity value of the of the monthly plan. To do this you have to use the nominal and effect functions before using the future value functions. First enter the know data like the monthly payment, the number of years of payment, the number of days in a year, and the annual percentage rate. First take the nominal rate and calculate the effective rate with the help of eff...

How To: Graph linear functions by finding X & Y Intercept

This video shows the method to graph a linear function by finding the X and Y intercept. Only two points are needed to graph linear functions. So we find the point on Y axis or the Y intercept and the point on the X axis or the X intercept. We notice that on the Y axis the X coordinate is zero. So, we find the Y intercept by putting x=0 in the given equation and solving for y. In the same way, we find the X intercept by putting y=0 in the given equation and solve for x. We join the two points...

How To: Find the formula of a piecewise function given a graph

This video shows how to find the formula of a piecewise function when given a graph. The first step is to write a definition for the graph, which is done by identifying the different domains shown in the graph. The second step is writing formulas for each domain specified by the lines in the graph. The point-slope formula is used to identify the slope and y-intercept for the leftmost domain, which has a sloped line. A point and horizontal line make for simpler equations in the other pieces of...

How To: Draw the "y=A|x-h|+k" graph

In this video, one teacher talked in detail about how to solve absolute value functions and how to translate different absolute value functions from one point in the matrix to another one horizontally and vertically. If the function is y=A|x-h|+k, generally, the diagram is symmetric based on the line of X and can be moved vertically based on k. The teacher gave several examples to explain how to illustrate the absolute value function. He started with a simple one: y=|x-h|, then continued with...

How To: Find the horizontal asymptotes of rational functions

Finding horizontal asymptotes is very easy! Not all rational functions have horizontal asymptotes. the function must satisfy one of two conditions dependent upon the degree (highest exponent) of the numerator and denominator. If the degree of the numerator is equal to the degree of the denominator, then the horizontal asymptote is y= the ratio of the leading coefficients. If the degree of the denominator is greater than the degree of the numerator then y= 0. If the degree of the denominator i...

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.

How To: Stop procrastinating to achieve your goals

In this tutorial, we learn how to stop procrastinating to achieve your goals. Procrastination is an avoidance behavior that can indicate a deeper psychological disorder. To get out of putting it off, make a schedule for yourself! Figure out how long it will take you to finish tasks and then put the time you need to do these on your calendar. Next, create accountability so someone will make sure you are keeping up on your tasks. Also, find meaning in the tasks that you need to do and make them...

How To: Tie a Rorschach knot

If you have ever wondered how to create a Rorschach knot, this tutorial will show you how to do it in no time. A Rorschach knot is indicative to the blotchy silhouette of Rorschach inkblots, which are primarily used during psychological evaluations. A subject's perception of inkblots are recorded using these. This video is going to be walking you through the process of tying your Rorschach knot, as well as the ways in which it needs to be adjusted while being tied. You will also learn a bit m...

How To: Use the hidden keyboard functions on an Apple iPad

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 detailed overview, watch this iPad user's guide.

How To: Use Get functions in scripts in FileMaker Pro 11

See how to create and work with Get functions in FileMaker Pro 11. Whether you're new to FileMaker Pro database management program or just want to learn how to take advantage of FileMaker Pro 11's new features, you're sure to benefit from this free video tutorial from the folks at Lynda. For more information, including detailed, step-by-step instructions, watch this handy FileMaker Pro user's guide.

How To: Use FREQUENCY array functions 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 and Mr. Excel, the 627th installment in their joint series of digital spreadsheet magic tricks, you'll learn how to create, edit and otherwise work with FREQUENCY array functions.

How To: Calculate the slope of a linear function

Need some help figuring out how to find the slope of a linear function? See how it's done with this free video algebra lesson. Need help finding the 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 S...

How To: Recognize and work with linear functions in algebra

Need to solve a linear function? See how it's done with this free video math lesson. Need help finding the 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...

How To: Add numbers with SUM and AutoSUM in MS Excel 2010

Learn how to add numbers using the SUM and AutoSUM functions within Microsoft 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, and to get started using the SUM and AutoSUM functions in your own Excel projects, watch this free video guide.

How To: Find the domain of a function without graphing

Want to find the domain of a function without graphing it? 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, 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: Find and sketch the domain of a multivariable function

Looking for a primer on how to find and sketch the domain of a function z = f(x, y) in calculus? Learn how with this free video calc 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: Determine the equation of a trigonometric function

Need help in determining the amplitude and period of sine and cosine functions? This free video lesson will show 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 finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free...

How To: Define trigonometric functions with a unit circle

Learn how to define the three fundamental trigonometric functions using a unit circle. 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 t...

How To: Use the CONFIDENCE.T function in Microsoft Excel 2010

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 7th installment in his series of Excel 2010 video tutorials, you'll learn how to use Excel's new CONFIDENCE.T function to calculate the margin of error for a T distribution confidence interval.