Formula Search Results

How To: Use Heron's formula

Area of a triangle can be calculated when you have the length of its base and height. In this case the area is 1/2 times the base and its height. If you do not know the height of the triangle but know the lengths of all the sides of the triangle then you can calculate its area using the Herons formula. First to use it you need to computer the semi perimeter of the triangle S, which is S = (a + b + c)/2, where a, b, c are the lengths of the sides of the triangle. Now the area of the triangle i...

How To: Force a stuck formula to calculate 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 210th installment in their series of digital spreadsheet magic tricks, you'll learn what to do if your formula does not calculate and is showing the equal sign and the rest of the formula without calculating.

How To: Prove Heron's Formula

This two part video walks you through the steps of in proving Heron's formula. This excellent video shows you a clean blackboard, with the instructors voice showing exactly what to do. Don't fret, any question you may have, will be answered. Watching this video will make you feel like your back in the classroom but rather comfortably from your home.

How To: Find the formula of a given sequence

In this tutorial, we learn how to find the formula of a given sequence. First, you need to decide what you're starting with. Start with a1, then continue on with a2, a3, and a4. Eventually, you will have an "An". You will have an "n" in your numerator and the denominator will start between the numbers of your fractions. Look to see if that works, then you have to see where the signs alternate on the fractions. Write in any negatives that you have, then figure your power out. Once you follow t...

How To: Use the distance formula for two points

In this tutorial, we learn how to use the distance formula for two points. The distance formula is D= the square root of (X2-X1) squared, plus (Y2 minus Y1) squared. It may look confusing, but it's just a derivation of a theorem. First, find the two points that you have and graph them. If you want to know the distance between them, you cannot just count squares if it's a diagonal line. If you remember geometry, you can draw a right triangle over the line to figure out the distance. After this...

How To: Calculate incentive rates by formula in MS Excel

As you might guess, one of the domains in which Microsoft Excel really excels is business 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 39th installment in his "Excel Business Math" series of free video lessons, you'll learn how to calculate (piecework/comission) incentive rates by Excel formula.

How To: Solve a basic percent formula word problem in Excel

As you might guess, one of the domains in which Microsoft Excel really excels is business 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 28th installment in his "Excel Business Math" series of free video lessons, you'll learn how to solve a basic percent (rate * base) formula word problem using Excel.

How To: Solve for base in a Microsoft Excel percent formula

As you might guess, one of the domains in which Microsoft Excel really excels is business 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 28th installment in his "Excel Business Math" series of free video lessons, you'll learn how to solve for base in a percent formula.

How To: Solve for rate in a Microsoft Excel percent formula

As you might guess, one of the domains in which Microsoft Excel really excels is business 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 28th installment in his "Excel Business Math" series of free video lessons, you'll learn how to solve for rate in percent formula.

How To: Update inventory records by formula 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 348th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn how to build a formula that will take invoice information for inventory quantity sold and update inventory records to show correct amount on hand (in stock).

How To: Match text substrings with an array formula in 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 321st installment in their series of digital spreadsheet magic tricks, you'll learn how to match text substrings with an array formula that uses the AND, ISNUMBER and SEARCH functions.

How To: Create a budget with formula inputs 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 22nd installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to create a budget with formula inputs in an assumption area and formulas. Then do what-if analysis by saving and showing scenarios. Also see how to save variables...

How To: Convert a text formula/function to a number in Excel

Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 44th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn use 4 different tricks to convert a text formula or function to a number. Also see how to convert text to numbers. Learn to love digital spreadsheets more perfectly with the tricks outlined in this free Microsoft Office how-to.

How To: Input values & formulas into a cell in Excel macros

This video shows how to enter values into cells using Excel macros and Visual Basic. This includes a sample Expense Report that is used in this demonstration. In this demonstration, we will create the macro that inputs a title as "Expense Report", Three columns i.e. "Date", "Item" & "Amount", and the summery field as "Total Expenses", as well as the formulas located at the respective cells. Now, we're going to use two keyboard shortcuts i.e. "Alt + F11" to open-up the VBA window and "Alt + F8...

How To: Use an array formula to filter data in Excel

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 574th installment in their series of digital spreadsheet magic tricks, you'll learn how to streamline filtering when you have categories of criteria using an array formula that uses the functions COUNTIF, VLOOKUP, ROWS, IF, INDEX, SMALL, and ROW. Also see how to put OR criteria into the IF function as well as how to do an OR coun...

How To: Sort data horizontally by formula 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 471st installment in their series of digital spreadsheet magic tricks, you'll learn how to sort horizontally with 3 different formulas that use the LARGE, SMALL, COLUMNS, IFERROR and IF functions.

How To: Grade test responses with formulas 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 578th installment in their series of digital spreadsheet magic tricks, you'll learn how to create a formula to grade student answers where more than one possibility exists using the IF and OR functions.

How To: Increment numbers in an Microsoft Excel formula

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 336th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the ROWS, COLUMNS, MOD, ROUND, and WEEKDAY functions to increment numbers in Excel formulas.

How To: Use the ratio formula to find coordinates of a point

This video is recorded in a mathematics class room. It is very clear by the sound and picture. The faculty here is explaining that the ratio between two numbers can be found using various formulae and methods. For example, 3:1 is the ratio between p and q. Likewise he explained the other formulae and methods.

How To: Use Boolean math formulas in Microsoft Office 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 651st installment in their series of digital spreadsheet magic tricks, you'll learn see how to replace your IF function with a shorter Boolean Math formula! TRUE = 1, FALSE = 0, TRUE*2000 = 2000 and FASLE*2000 = 0.

How To: Name cell ranges and use names in formulas 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're in the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 3rd installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to name a range of cells; how to use names in formulas;

How To: Use comparative operators & logical formulas in 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 11th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to use comparative operators; logical TRUE/FALSE formulas, IS functions (ISTEXT, ISNUMBER, ISBLANK, ISERROR, ISNONTEXT); IF functions (1 of 2 words in a cell, 1 of...

How To: Speed up calculations with custom Excel formulas

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 very first installment in his "Excel Formula Efficiency" series, you'll learn how a custom function (i.e., a user-defined function) can speed up calculations.

How To: Find Z with the Z-Score formula

In this video tutorial the instructor shows how to find Z with the Z-Score formula. He uses a sample problem to show how to find this. He tells you the formula for z which is a real simple formula. Now he notes down the formula on the board and brings in the example problem with sample values. He substitutes the values in the z-score formula and solves it finding out the z value. This video shows how to find z using the z-score formula and also demonstrates the formula using a simple example.

How To: Simplify a quadratic formula result

In this video the tutor shows how to simplify a quadratic formula result. You can solve a quadratic equation using the quadratic formula. The first thing you have to do when given the quadratic equation is bring all the terms to one side so that you have a zero on the other side of the equals to sign. Now the formula to calculate the roots of the quadratic equation ax*x + bx + c = 0 is x = (-b + root of(b*b - 4*a*c) ) / 2 * a. The other root can be obtained by using the minus sign before the ...

How To: Use the SOH formula in trigonometry

Need a little help in your Trig class? In this two-part math tutorial, learn how to use the SOH (sine = opposite over hypotenuse) formula in high school Trigonometry. If you'd like to practice with exercises and answer sheets, you can go here.

How To: Replace a long IF with a MIN/MAX formula in Excel

New to Excel? Looking for a tip? How about a tip so mind-blowingly advanced as to qualify as a magic trick? You're in luck. In this Excel tutorial from ExcelIsFun, the 100th installment in their series of digital spreadsheet magic tricks, you'll learn how to replace a long IF formula with a simple MIN/MAX formula (or an even simpler MEDIAN function). See 3 amazing examples. When you have a hurdle such a Commission Hurdle or a Payroll Taxable Earning Hurdle, and you are using an IF function fo...

How To: Solve a quadratic equation by quadratic formula

This video is describing how to solve quadratic equation by quadratic formula. The quadratic equation is given in the video and we will use quadratic formula. We will put the equation in the formula our equation is 4psquare= -23p - 15. Now add 23 to both sides and then add 15 to both sides now we will get an easy equation, 4 will be used as a and 23 will be used as b and 15 will be used as c and we have a=4,b=23 and c=15 put these values in the quadratic formula and we have the value of p=5.-...

How To: Use the percentile formula in Statistics

In this tutorial the instructor explains the percentile formula. He says that the percentile formula is used to find the percentile rank of a data point in a group of data. He takes an example that consists of the lengths of puppies. Now he intends to find out the percentile rank of any puppy in the group. He shows that the formulate to compute a percentile rank of a particular puppy is rank R = 100 * (N< + (1/2)N= )/ Nt, where N< is the number of puppies whose length is less that the length ...

How To: Find the midpoint of two points using formula

Find the midpoint of two points using a easy formula. Each coordinate has a x and y. X being the first number and y being the second number. So using the formula of x one plus x two then divide the sum by two. Using the same formula with the y coordinates. After plugging the numbers in the formula add the two x coordinates and divide by two. If you follow the same steps for the y coordinate take the two numbers and you have the midpoint of your two coordinates.