Function Search Results

How To: Calculate variance and standard deviation using Excel

This video shows the method to find the variance and standard deviation using Excel. The variance shows the variability of the data points from the median. We find the difference of the median and the mean. We write the formula using '=' sign. The median and data points are put in it by selecting the appropriate cell. The median is made an absolute constant by pressing the F4 key. This is squared by using '^2'. This is multiplied to the frequency using '*'. The result is found for all the dat...

How To: Fire up your metabolism

This video focuses on strategies you can use to boost your metabolism--one-step needed in order to lose belly fat. Obtaining a faster metabolism will train your body to burn more calories throughout the day. The first step to boost your metabolism is through strength training, which means developing leaner muscle mass. This will result in long-term investment for caloric burning. The second step involves exercising in the morning; this will help you burn calories more easily throughout the da...

How To: Create dynamic menus with JavaScript

1. The following steps describes how to Create dynamic menus with html and Javascript. 2. Open the html file in Illustrator. 3. Enter the Menu.js file with <Script> Tag. 4. Create a Bulleted List of the Menus and Its Sub Menus inside a DIV Tag. 5. For Each UI List Create a Mouse over and mouse out Event for Header Menus. 6. For Mouse over Event call a Function named set Menu with MenuSubOne id as parameters 7. For Mouse out Event call a Function named named clearMenu with MenuSubOne id as par...

Exploit Development: How to Read & Write to a Program's Memory Using a Format String Vulnerability

Format strings are a handy way for programmers to whip up a string from several variables. They are designed to save the programmer time and allow their code to look much cleaner. Unbeknownst to some programmers, format strings can also be used by an attacker to compromise their entire program. In this guide, we are going to look at just how we can use a format string to exploit a running program.

How To: Use Excel data analysis filter & dynamic ranges

We're on sheet, tab, filter. We want to talk about filter, but we also want to talk about an Excel table or list. It is simply a data set with field names at the top, records in rows, no blanks anywhere and no other data sets touching this data set. When we convert to a table, it does a lot of amazing things. The new keyboard shortcut is "Ctrl T". If data is set up correctly, it will work. Click Ok. You can build a function based on a column of data, i.e. "Alt =" which is the shortcut for sum...

How To: Create a savings plan that will yield $1,000,000 at retirement in Excel

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, part of his "Excel Finance Class" series of free video lessons, you'll learn how to use the PMT function to contrive a savings plan that will yield $1,000,000 at the time of retirement.

How To: Calculate the present value of annuity in Microsoft Excel

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, part of his "Excel Finance Class" series of free video lessons, you'll learn how to use the PV function to calculate the present value of an annuity.

How To: Replace a broken toilet flange

The flange on a toilet is the part that joins the toilet to the ground, and is very important to proper toilet function. If your toilet wobbles, smells bad, or leaks, your flange may be broken. Watch this video to learn how to remove the broken flange and install a new one.

How To: Downgrade your iPhone firmware to an earlier version

If you want to jailbreak your iPhone or iPod Touch, it might be necessary to first downgrade your firmware so the jailbreak will work properly. This tutorial shows you how to downgrade from 2.2.1 to 2.2 using quickpwn. Then access your iPhone through iTunes and use the Restore function to restore your device to an earlier version of the firmware.

How To: Turn on the AutoFill option on an Apple iPhone 3GS

In this clip, you'll see what it takes to turn on the AutoFill (auto fill) function on an iPhone 3GS. Whether you're the proud owner of an Apple iPhone 3G or perhaps just considering picking one up second hand, you're sure to benefit from this free video tutorial. For more information, including a detailed overview, watch this iPhone user's guide.

How To: Use the aperture priority mode on a Panasonic G1/GH1

Learn how to shoot with the Aperture Priority (A) function on a Panasonic G1 or GH1 digital camera. Whether you're the proud owner of a Panasonic Lumix DMC-G1 or DMC-GH1 micro four thirds digital camera or perhaps just considering picking one up, you're sure to like this free video tutorial, which presents a complete overview of how to use the manual aperture (A) mode on a G1 or GH1 camera. For more information, including detailed instructions, watch this digital camera user's guide.

How To: Adjust cable tension, jockey wheel, derailleur hanger

THere are many parts of the rear derailleur on a mountain or road bike that need frequent adjustment to function properly and give you proper performance on your rides. This video will teach you how to adjust the cable tension, the jockey wheel, and the hanger of the derailleur, ensuring that the whole system is functioning smoothly and that your bike will work as well as possible.

How To: Create a frequency distribution 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 and Mr. Excel, the 15th installment in their joint series of digital spreadsheet magic tricks, you'll learn how to use a pivot table with grouping and a count function to create a frequency distribution.

How To: Find an item's relative position via MATCH in MS Excel

hether 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 43rd installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to use the MATCH function to find the ordinal position (relative position) of an item in a list.

How To: Use conditional summing 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 9th installment in his "Highline Excel Class" series of free video Excel lessons, you'll see three examples using the SUMIF function to do conditional summing.

How To: Add across sheets in Excel with 3D cell references

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 8th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to add across sheets using 3-D cell References and the SUM function.

How To: Use SUMIFS and COUNTIFS in Microsoft Excel 2007

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 7th installment in his "Excel Formula Efficiency" series, you'll learn about the SUMIFS function and how it blows SUMPRODUCT away when it comes to calculation speed.

How To: Add the difference between 2 number columns 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 339th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the SUMPRODUCT function to add the difference between two columns of numbers based on two criteria.