spttrf.f (3) Linux Manual Page
spttrf.f – Synopsis Functions/Subroutines subroutine spttrf (N, D, E, INFO) SPTTRF Function/Subroutine Documentation subroutine spttrf (integerN, real, dimension( * )D, real, dimension( * )E, integerINFO) SPTTRF Purpose: SPTTRF computes the L*D*L**T factorization of a real symmetric positive definite tridiagonal matrix A. The factorization may also be regarded as having the form A = U**T*D*U. …
