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How To: Hack Dragon Slayers 2 with Cheat Engine (12/10/09)

Users will need to use Cheat Engine version 5.5. This hack will increase the gold and food amount. Begin the game and play at least 2 levels to earn some gold and food. Open Cheat Engine, click one the computer icon and select the internet icon. Multiply the amount of gold or food by 8. Type the number in the Value bar and click First Scan. Buy anything in the game, multiply the new amount by 8 and put the number in Values. Check the frozen box below and add a new value (should be a divisible...

How To: Read, write, and delete cookies in ASP.Net

In this video tutorial, Chris Pels will show how to read, write, and delete cookies in an ASP.NET application. First, learn the basic operations for manipulating cookies. Then learn approaches to storing multiple values in a single cookie using name-value pairs called subkeys. Next, learn how to limit the scope of cookies to a particular application domain or folder. See how to modify values and expiration dates in existing cookies and how to delete an existing cookie. In addition, several co...

How To: The Hardware Hacker's Introduction to Microcontrollers, Part One: Anatomy of an Arduino

In this article, I'll be explaining the basics of how microcontrollers work, physically and virtually. First off, microcontrollers are no simple thing, so don't be discouraged if you find it mind-boggling! The world of microcontrollers is fascinating, engaging, and an awesome hobby; it never gets boring. I'll be focusing more on I/O and analog based microcontrollers, such as those running Arduino, and using Atmel chips as examples (these are most commonly available, and easy to program).

How To: Tweak Aero Peek and Desktop Live Preview on Windows 7

In this video, we learn how to tweak Aero Peek and Desktop Live Preview on Windows 7. First, go to registry editor, then current user, then software, then Microsoft, and go down to Windows. After this, click on current version, explorer, and advanced. Now, right click on the white space and click "new keyword value" and name it "desktoplivepreviewhovertime". After this, double lick and change it to decimal, then change the value data to 10. Next, create another keyword value and name it "Exte...

How To: Calculate your GPA

In order to calculate your cumulative average (GPA), you need to know the value of the grades you receive. The grades you receive in your classes are based on the grading scale of each instructor in your classes. Your cumulative average is the resulting value of all of the grades.

How To: Find the place value of a number in a decimal number

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 answer problems that require you to find the place value of a number within a decimal.

How To: Hack Jungle Magic with Cheat Engine (09/20/09)

Open Jungle Magic and then open up Cheat Engine, click Browse and find the process that is running Jungle Magic (ex. firefox.exe). Click Open and in Value Type change to Array of Bytes, copy the cheat code in Hex box and press First Scan. Select the value from the left area, now in the bottom area change the value to the cheat value. Go to the game and start to play, you will see that now you have unlimited time. Go back to Cheat Engine and click New Scan, change the value type to 4 bytes, un...

How To: Calculate the value of a preferred stock 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, the 62nd installment in his "Excel Finance Class" series of free video lessons, you'll learn how to calculate the value of a preferred stock.

How To: Value a stock with predictable dividends 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, the 63rd installment in his "Excel Finance Class" series of free video lessons, you'll learn how to value a stock with predictable dividents in Excel.

How To: Value a stock with irregular dividend payments 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, the 67th installment in his "Excel Finance Class" series of free video lessons, you'll learn how to calculate the value of a stock with irregular dividend payments,

How To: Calculate future & present value for multiple cash flows 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 calculate the future and present values for multiple cash flows in Excel.

How To: Calculate the future value of annuity with the FV function 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 FV function to calculate the future value of an annuity.

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: Calculate the present value of an annuity for asset valuation 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, the 34th installment in his "Excel Finance Class" series of free video lessons, you'll learn how to calculate the present value of annuity in Excel.

How To: Calculate the future value of an investment 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, the 21st installment in his "Excel Finance Class" series of free video lessons, you'll learn how to calculate the future value of an investment in Microsoft Excel.

How To: Calculate the present value of an investment 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, the 22nd installment in his "Excel Finance Class" series of free video lessons, you'll learn how to calculate the present value of an investment in Microsoft Excel.

How To: Return values from a method when programming in Java

In this clip, you'll learn how to return a variable value from a method when coding in Java. Whether you're new to the Java object-oriented programming language or are a seasoned developer merely looking to improve your chops, you're sure to find benefit in this free video programming lesson. For more information, including detailed, step-by-step instructions, take a look.

How To: Decrease values 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 2nd installment in their joint series of digital spreadsheet magic tricks, you'll see two methods for subtracting 35% from a column of values.

How To: Extract items not having a given text value 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 and Mr. Excel, the 25th installment in their joint series of digital spreadsheet magic tricks, you'll learn how to extract records from databases that do NOT contain a given text value.

How To: Use Excel's SUMIF, RANK & IF functions

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 30th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to use the SUMIF function to add with one criteria, the RANK function to rank highest values to lowest values (one to five) and the IF function to assign a bo...

How To: Make present value calculations 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 58th installment in his "Excel Business Math" series of free video lessons, you'll learn how to make simple value calculations for the present.

How To: Sum the 3 largest or smallest values in a set in 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 5th installment in his series of Excel array formula series, you'll learn how to create array formula for adding the 3 largest or smallest values in a data set.

How To: Autohighlight the highest value in a row 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 268th installment in their series of digital spreadsheet magic tricks, you'll learn how to apply a conditional format that will highlight the maximum value in a row using a true/false formula.

How To: Calculate averages in Microsoft Office 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 using Excel to calculate average values and to pick max and min values. For more on this handy feature of Excel, watch this how-to.

How To: Use a unit circle to find trig values

In this tutorial, we learn how to use a unit circle to find trig values. The unit circle has a radius one, use the definition of the trig functions to figure this out. Write them down if you need to, to remember what they are. You will also need two special triangles to help figure this out. Make sure you know the short side is opposite 30 degrees. Now, draw out your graph and find the ordered pair of pie, then find the y value of it. From here, find the cosine, tangent, and other units using...

How To: Determine if a point lies on a line in standard form

In this video, we learn how to determine if a point lies on a line in standard form. In order to do this, you will need to substitute the X and Y value with the ordered pair that is given. The X value is the first number and the Y value is the second number. Re-write your equation, substituting in the numbers to the appropriate spots. Now, simplify the equation by doing multiplication with the negatives and positives (if given). When you get through the equation, you will end up with the solu...

How To: Understand Ohm's Law

This video teaches the basics of Ohm's law, which is an important equation in electrical engineering. The three variables which are used in this equation are V, which stands for voltage, I for current, and R for resistance. The equation for the law itself is I=V/R. This law defines the relationship between these three very important electrical properties. The host of the video further explains what voltage, current, and resistance are and how they work in relation to an electrical current. Gi...

How To: Use the INDEX & MATCH functions 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 45th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to use the INDEX & MATCH functions.

How To: Use rounding functions & paste special values 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've come to the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 28th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to use Excel's rounding functions, how to paste special values – and quite a lot more besides. Specifically, this video addresses each of the following topics:

How To: Work with Microsoft Excel's LOOKUP function

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 42nd installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn ten tricks involving the LOOKUP function:

How To: Compare exponential expressions

In this video the tutor shows how to compare exponential expressions and judge if they are equivalent. He shows how to do this using examples to simply exponential expressions. Now after simplifying the numerator and denominator separately he reduces the fraction to arrive at a simple value. Now using this simple values we can compare them and judge if both their values are equivalent. This video gives a good introduction on how to simplify the exponential expression and how to compare them a...

How To: Make a quartile diagram (aka, box and whisker plot)

This is an interesting mathematical instructional video on how to make a quartile diagram. This example is about 34 grades obtained by chemistry class students. We need a minimum value, a maximum value, Q1, Q2 and Q3 values to make a quartile diagram. The minimum is 43 and the maximum is 92. To calculate Q2 median formula (n+1 over 2)is used. The Q2 median is 17.5. So the average of 69 and 71 is 70 and hence Q2 70. Similarly Q1 is calculated as 61 and Q3 is calculated as 79. Now you can draw ...

How To: Prove angle-side-angle congruency

This is a tutorial about how to prove the congruency (equality) of two triangles when the values of two angles and an included side of each triangle is given. The author of this video instructs the viewer that it should be first determined whether the values of two angles of one triangle are the same as those of two angles of the other triangle. Then one must seek to determine the equality of sides included in those angles in both the triangles. When it is found that these three values in one...

How To: Find percent

Finding the percent of a given value is made simple and easy in this math tutorial video. In step one you must divide the part or the portion by the whole. As a result we obtain a decimal number. In step two, we must then move the decimal point two places to the right in order to convert the number into a percent value. This brief video tutorial illustrates the process in these two steps and makes it simple for anyone to be able to obtain a percent value for a portion of a whole.