Developer Reference for Intel® oneAPI Math Kernel Library - C

Developer Reference

  • 0.9
  • 09/09/2020
  • Public Content
Contents

Matrix Inversion: LAPACK Computational Routines

It is seldom necessary to compute an explicit inverse of a matrix. In particular, do not attempt to solve a system of equations
Ax
 =
b
 by first computing
A
-1
 and then forming the matrix-vector product
x
 =
A
-1
b
. Call a solver routine instead (see Routines for Solving Systems of Linear Equations); this is more efficient and more accurate.
However, matrix inversion routines are provided for the rare occasions when an explicit inverse matrix is needed.

Product and Performance Information

1

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Notice revision #20110804