Statistics and Probability Dictionary
Select a term from the dropdown text box. The online statistics
glossary will display a definition, plus links to other
related web pages.
Select term:
Inverse
Suppose A is an n x n
matrix. The inverse
of A is another n x n matrix,
denoted A-1, that satisfies the following
conditions.
AA-1 =
A-1A =
In
where In is the
identity matrix.
Below, with an example, we illustrate the relationship between a matrix
and its inverse.