dsyevc3 Subroutine

public subroutine dsyevc3(A, W)

Calculates the eigenvalues of a symmetric 3x3 matrix A using Cardano's analytical algorithm. Only the diagonal and upper triangular parts of A are accessed. The access is read-only.

Copyright (C) 2006 Joachim Kopp

Arguments

Type IntentOptional Attributes Name
real(kind=RP), intent(in), DIMENSION(3,3) :: A
real(kind=RP), intent(out), DIMENSION(3) :: W(3)