problems with zheev

Rositta

I'm using zheev subroutine in a do loop (up to 2000 times) that contains other subroutines and functions. The matrix to diagonalize is only 5-by-5 however zheev gives the correct eigenvalues for only few cases even after reducing the number of times in the do loop. Any hint would be highly appreciated...

Rositta	problems with zheev Tweet I'm using zheev subroutine in a do loop (up to 2000 times) that contains other subroutines and functions. The matrix to diagonalize is only 5-by-5 however zheev gives the correct eigenvalues for only few cases even after reducing the number of times in the do loop. Any hint would be highly appreciated...