Function spteqr_

Computes all eigenvalues and eigenvectors of a real symmetric positive definite tridiagonal matrix, by computing the SVD of its bidiagonal Cholesky factor.

extern(C) void spteqr_ (
  char* compz,
  int* n,
  float* d,
  float* e,
  float* z,
  int* ldz,
  float* work,
  int* info,
  int compz_len
);