// Return Imag(A).
func Imag(A *matrix.ComplexMatrix) *matrix.FloatMatrix {
C := matrix.FloatZeros(A.Size())
Ar := A.ComplexArray()
Cr := C.FloatArray()
for i, v := range Ar {
Cr[i] = imag(v)
}
return C
}
// Compute Abs(A), Returns a new float valued matrix.
func Abs(A *matrix.ComplexMatrix) *matrix.FloatMatrix {
C := matrix.FloatZeros(A.Rows(), A.Cols())
Cr := C.FloatArray()
Ar := A.ComplexArray()
for k, v := range Ar {
Cr[k] = cmplx.Abs(v)
}
return C
}