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...

Just like a number has a reciprocal ... ... And there are other similarities

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

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).

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

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

Also known as College Algebra. So what are you going to learn here? You will learn about Numbers, Polynomials, Inequalities, Sequences and Sums,...

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

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.

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