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Math

Join our Math World now to meet up with other math students and mathematicians on the Web. Learn how to perform basic math functions, and share your own tips and tricks for solving problems and calculating answers for everything math related, from algebra to geometry to trigonometry to advanced calculus.

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Oct 30, 2010

In this video, we learn how to add fractions together. First, try doing a simple equation like 1/2 + 1/2. From here, you will simply just add together across the board. Once you get the answer, it wil ...

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Oct 30, 2010

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 h ...

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Oct 30, 2010

In this video, we learn how to identify number types. You will need to figure out what numbers from a list is a rational numbers in your math equations. A natural number is a counting number (1,2,3). ...

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Oct 30, 2010

In this tutorial, we learn how to determine if you have a function. You will start off with two functions and their points. The 'x' values make up the domain of the function and the 'y' values make up ...

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Oct 30, 2010

In this video, we learn how to rationalize the denominator. This says that if there is a square root or any type of root, you need to get rid of them. Look at the examples given in the video to get an ...

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Oct 25, 2010

With this free video math lesson, you'll learn how to do multiply any number by zero. With mathematics, as with anything else, not everyone progresses at the same rate. Basic math is no exception. Hap ...

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Oct 22, 2010

In this free video chemistry lesson from Salman Khan, we learn about specific heat capacity and vaporization. Whether you need help studying for that next big test or could just use a hand finishing y ...

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Oct 22, 2010

In this free video chemistry lesson from Salman Khan, we learn how to work with carboxylic acid derivatives. Whether you need help studying for that next big test or could just use a hand finishing yo ...

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Oct 18, 2010

With this free video math lesson, you'll learn how to do long division with double and triple-digit numbers. With mathematics, as with anything else, not everyone progresses at the same rate. Basic ma ...

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Oct 18, 2010

There wouldn't be any chaos in the world without Benoit Mandelbort— chaos theory, that is. Mandelbrot, who just passed away at the age of 85, pioneered fractal geometry and greatly influenced chaos th ...