compute_transform_length Function

public pure function compute_transform_length(n) result(rst)

Computes the length of the positive half of a discrete Fourier transform for a specific signal length.

The length of the discrete Fourier transform is determined as follows.

If n is even, $$m = \frac{n}{2} + 1$$

else; $$m = \frac{n + 1}{2}$$ .

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int32),	intent(in)			::	n	The signal length (length of the signal put forth to the Fourier transform).

Return Value integer(kind=int32)

The length of the positive half of the discrete Fourier transform.