Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {
    private static void multTwiddleFactor(int index, float[] real, float[] img, int pos, int sum) {

        float cosArg = (float) Math.cos(-2.0f * Math.PI * pos / (float) sum);
        float sinArg = (float) Math.sin(-2.0f * Math.PI * pos / (float) sum);

        float r = real[index] * cosArg - img[index] * sinArg;
        float i = real[index] * sinArg + img[index] * cosArg;

        real[index] = r;
        img[index] = i;
    }
}