public static Complex QuoteOf(Complex X, Complex Y) {
double e = Math.pow(Y.real, 2) + Math.pow(Y.imag, 2);
Complex Z = new Complex();
Z.setReal((X.real * Y.real + X.imag * Y.imag) / e);
Z.setImag((X.imag * Y.real - X.real * Y.imag) / e);
return Z;
}
public Abs toAbs(String real, String immaginary) {
Abs abs = new Abs();
Complex complex = new Complex();
complex.setImmaginary(Float.parseFloat(immaginary));
complex.setReal(Float.parseFloat(real));
abs.setComplex(complex);
return abs;
}
public Abs toAbs(float real, float immaginary) {
Abs abs = new Abs();
Complex complex = new Complex();
complex.setImmaginary(immaginary);
complex.setReal(real);
abs.setComplex(complex);
return abs;
}
public static void main(String[] args) {
new Complex(2, 4).printNum();
new Complex(6, 7).addNum(new Complex(4, 6)).printNum();
new Complex(6, 7).multiplyNum(new Complex(4, 6)).printNum();
Complex c = new Complex(4, 7);
c.setImag(6);
c.setReal(3);
c.printNum();
}
private void ift(Complex[] F, byte[] img, int width, int height) {
for (int x = 0; x < height; x++) {
for (int y = 0; y < width; y++) {
Complex c = new Complex();
for (int u = 0; u < height; u++) {
for (int v = 0; v < width; v++) {
Complex tmp =
Complex.fromPolar(
1, 2.0 * Math.PI * (u * x / (double) height + v * y / (double) width));
c = c.plus(tmp.mul(F[u * width + v]));
}
}
c = c.div(height * width);
c = c.mul(Math.pow(-1, (x + y)));
if (c.getReal() < 0) c.setReal(0.0);
System.out.println(c.getReal());
img[x * width + y] = (byte) (c.getReal());
}
}
}
public static Complex DiffOf(Complex X, Complex Y) {
Complex Z = new Complex();
Z.setReal(X.real - Y.real);
Z.setImag(X.imag - Y.imag);
return Z;
}
public static Complex prodOf(Complex X, Complex Y) {
Complex Z = new Complex();
Z.setReal(X.real * Y.real - X.imag * Y.imag);
Z.setImag(X.real * Y.imag + X.imag * Y.real);
return Z;
}
public static Complex sumOf(Complex X, Complex Y) {
Complex Z = new Complex();
Z.setReal(X.real + Y.real);
Z.setImag(X.imag + Y.imag);
return Z;
}
