transform_alpha2kalpha Subroutine

public subroutine transform_alpha2kalpha(galph, gkalph)

input galph array is real and contains values on the padded alpha grid gkalph is output array; it contains the Fourier coefficients of galph for positive ky values only (reality can be used to obtain the negative ky coefs) the highest 1/3 of the ky modes from the FFT have been discarded to avoid de-aliasing

Arguments

Type IntentOptional Attributes Name
real, intent(in), dimension(:) :: galph
complex, intent(out), dimension(:) :: gkalph