A Matrix is an array of numbers: A Matrix (This one has 2 Rows and 3 Columns). To multiply a matrix by a single number, we multiply it by every...

Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.

Such a matrix is called "Singular", which only happens when the determinant is zero. ... The inverse of A is A-1 only when AA-1 = A-1A = I

A vector has magnitude (how long it is) and direction ... Here are two vectors

Math explained in easy language, plus puzzles, games, quizzes, videos and worksheets. For K-12 kids, teachers and parents.

Also called Dirac Notation. Bra-Ket is a way of writing special vectors used in Quantum Physics that looks like this:

Hi there! This page is only going to make sense when you know a little about Systems of Linear Equations and Matrices, so please go and learn about those if you don't know them already.

Enter your matrix in the cells below A or B. ... Or you can type in the big output area and press to A or to B (the calculator will try its best to interpret your data).

They have many uses ... A simple example is that an eigenvector does not change direction in a transformation ... How do we find that vector?

Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.