inverse()

Read(2180) Label: square matrix, inverse,

Description:

Calculate the inverse of a square matrix.

Syntax:

inverse(A)

Note:

The function calculates the inverse of square matrix A. It returns null if the square matrix hasn’t an inverse.

Parameter:

A

A square matrix

Option:

@p

Enable the calculation of pseudo inverse of square matrix B if the rank of matrix A is less than the numbers of its rows(columns)

Return value:

Sequence

Example:

 

A

 

1

[[1,-2,1],[0,2,-8],[-4,5,9]]

 

2

=inverse(A1)

3

=[[1,-2,1],[8]]

4

=inverse@p(A3)