sptrf
- void sptrf(char uplo, f_int n, f_float* ap, f_int* ipiv, f_int info)
- void sptrf(char uplo, f_int n, f_double* ap, f_int* ipiv, f_int info)
- void sptrf(char uplo, f_int n, f_cfloat* ap, f_int* ipiv, f_int info)
- void sptrf(char uplo, f_int n, f_cdouble* ap, f_int* ipiv, f_int info)
Computes the factorization of a real symmetric-indefinite matrix in packed storage, using the diagonal pivoting method.