Intel® oneAPI Math Kernel Library LAPACK Examples

Developer Reference

  • 2022.1
  • 12/20/2021
  • Public Content
Contents

SSYEVX Example

The routine computes all the eigenvalues and, optionally, the eigenvectors of a square real symmetric matrix
A
.
The eigenvector
v
(j)
 of
A
 satisfies the following formula:
A*v(j) = lambda(j)*v(j)
where
lambda
(j)
 is its eigenvalue.
The computed eigenvectors are orthonormal. The eigenvalues and eigenvectors can be selected by specifying either a range of values or a range of indices of the desired eigenvalues.

C Interface

Please refer to the Matrix Layout section of the C Interface Conventions for the description of Row Major (C default) and Column Major (Fortran default).

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.