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
);