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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.
"How to Solve a word problem for the perimeter of a rectangle" cover image
May 31, 2010

Need a little bit of help figuring out how to solve word problems involving the perimeter of a rectangle? See how it's done with this free video math lesson. From Ramanujan to calculus co-creator Gott ...

"How to Rationalize the denominators of radicals in math" cover image
May 31, 2010

Need some help figuring out how to the rationalize denominators in prealgebra? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have b ...

"How to Find the formula in an arithmetical sequence" cover image
May 28, 2010

See how to find the formula for an arithmetical sequence in college-level algebra given two terms in this free video college-level algebra lesson. From Ramanujan to calculus co-creator Gottfried Leibn ...

"How to Evaluate a telescoping series using partial fractions" cover image
May 28, 2010

Looking for a primer on how to solve a telescoping series using partial fractions? See how it's done with this free video college algebra lesson. From Ramanujan to calculus co-creator Gottfried Leibni ...

"How to Find the common ratio of a geometric series" cover image
May 28, 2010

Interested in knowing how to find the ratio of a geometric series? See how it's done with this free geometer's guide. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best ...

"How to Find the nth term of a geometric sequence" cover image
May 28, 2010

Looking for a primer on how to find the nth term of a geometric sequence? See how it's done with this free geometer's guide. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world' ...

"How to Find the sum of an infinite geometric series" cover image
May 28, 2010

Need some help finding the sum of an infinite geometric series? See how it's done with this free geometer's guide. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and ...

"How to Find determinants with a TI-83 calculator" cover image
May 28, 2010

Looking for a primer on how to find determinants using a TI-83 graphing calculator? See how it's done with this free video math lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of ...

"How to Multiply radicals in algebra" cover image
May 28, 2010

Looking for a primer on how to multiply two or more radicals? See how it's done with this free video algebra lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best a ...

"How to Apply the Pythagorean theorem" cover image
May 28, 2010

Meet the Pythagorean theorem—an indispensable tool for any budding geometer. The Pythagorean theorem will allow you to measure the hypotenuse or any other side of a right triangle when the length of i ...