inverse

Invert a matrix. More...

Functions
AFAPI array	inverse (const array &in, const matProp options=AF_MAT_NONE)
	C++ Interface for inverting a matrix. More...
AFAPI af_err	af_inverse (af_array *out, const af_array in, const af_mat_prop options)
	C Interface for inverting a matrix. More...

Detailed Description

Invert a matrix.

This function inverts a square matrix A. The code snippet to demonstrate this can be seen below.

    af::array IA = inverse(A);
    af::array I = af::matmul(A, IA);

The sample output can be seen below

A [3 3 1 1]
    0.0100     3.0100     6.0100
    1.0100     4.0100     7.0000
    2.0000     5.0000     8.0000

IA [3 3 1 1]
   48.9076   -99.9927    50.7518
  -99.1552   199.9852  -100.4968
   49.7451   -99.9926    50.2475

I [3 3 1 1]
    1.0000     0.0001    -0.0000
    0.0000     1.0000     0.0000
    0.0000     0.0000     1.0000

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Function Documentation

AFAPI af_err af_inverse	(	af_array *	out,
		const af_array	in,
		const af_mat_prop	options
	)

C Interface for inverting a matrix.

Parameters

[out]	out	will contain the inverse of matrix in
[in]	in	is input matrix
[in]	options	determining various properties of matrix in

Note

currently options needs to be AF_MAT_NONE

AFAPI array af::inverse	(	const array &	in,
		const matProp	options = AF_MAT_NONE
	)

C++ Interface for inverting a matrix.

Parameters

[in]	in	is input matrix
[in]	options	determining various properties of matrix in

Returns

x, the inverse of the input matrix

Note

options currently needs to be AF_MAT_NONE

This function is not supported in GFOR