RealDFT1DComputeBackward Method

public void ComputeBackward(
	Complex[] input,
	double[] output
)

Parameters

input

Type: FinMathComplex
The complex conjugate-symmetric sequence.

Remarks

The input complex sequence is assumed to be conjugate-symmetric:

Copy

1input[0].Imaginary = 0.0

and

Copy

1input[i] = Complex.Conjugate(input[n - i])

where n - is the length of the sequence, and i = 1 .. n - 1.
Thus, the elements of second half of the sequence remains unreferenced.

output

Type: SystemDouble
The real sequence - the result of IDFT.

Reference