hetrd
- void hetrd(char uplo, f_int n, f_cfloat* a, f_int lda, f_float* d, f_float* e, f_cfloat* tau, f_cfloat* work, f_int lwork, f_int info)
- void hetrd(char uplo, f_int n, f_cdouble* a, f_int lda, f_double* d, f_double* e, f_cdouble* tau, f_cdouble* work, f_int lwork, f_int info)
Reduces a Hermitian matrix to real symmetric tridiagonal form by an orthogonal/unitary similarity transformation.