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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.
Mathematical equations written on a blackboard.
May 25, 2010

Learn how to use invertible change of basis matrices in linear algebra. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged ...

Mathematical equations and matrices on a blackboard.
May 25, 2010

Need help figuring out how to utilize change of basis matrices in linear algebra? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds hav ...

Angles and geometric relationships illustrated with color-coded alternate interior angles.
May 25, 2010

Calculate the angles formed between parallel lines and a transversal. This free video geometry lesson will show you how. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's be ...

Mathematical equations and graphs related to vector spaces.
May 25, 2010

Learn how to use alternative coordinate systems in linear algebra. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to a ...

Mathematical equations and diagrams related to linear algebra on a black background.
May 25, 2010

Learn how to use least squares approximation for otherwise unsolvable equations in linear algebra! From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathe ...

Mathematical equations on orthonormal bases and vector spaces.
May 25, 2010

Learn how to find an orthonormal basis for a subspace using the Gram-Schmidt process in linear algebra! From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest ...

Illustration of a normal distribution curve with related statistics, including mean and standard deviation, for a weight analysis problem.
May 25, 2010

Learn how to use the empirical rule (or 68-95-99.7 rule) to estimate probabilities for normal distributions in statistics. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's ...

Mathematical calculations involving a normal distribution and a calculator.
May 25, 2010

Need help figuring out how to determine a z-score for a normal distribution (or bell curve) in statistics? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brighte ...

Diagram of a triangle illustrating sine, cosine, and tangent relationships with labeled angles and lengths.
May 25, 2010

Need help figuring out how to unpack and solve word problems in trig? Learn how with this free video trigonometry lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's b ...

Mathematical equations and diagrams on a chalkboard.
May 25, 2010

Learn how to prove that the orthogonal complement of the orthogonal complement of V is V! From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical m ...