diff --git a/app/src/main/java/xdsopl/robot36/Complex.java b/app/src/main/java/xdsopl/robot36/Complex.java
index 3108c6b..fa3773f 100644
--- a/app/src/main/java/xdsopl/robot36/Complex.java
+++ b/app/src/main/java/xdsopl/robot36/Complex.java
@@ -6,73 +6,91 @@ Copyright 2024 Ahmet Inan <xdsopl@gmail.com>
 
 package xdsopl.robot36;
 
+@SuppressWarnings("unused")
 public class Complex {
 	public float real, imag;
+
 	Complex() {
 		real = 0;
 		imag = 0;
 	}
+
 	Complex(float real, float imag) {
 		this.real = real;
 		this.imag = imag;
 	}
+
 	Complex set(Complex other) {
 		real = other.real;
 		imag = other.imag;
 		return this;
 	}
+
+	@SuppressWarnings("SameParameterValue")
 	Complex set(float real, float imag) {
 		this.real = real;
 		this.imag = imag;
 		return this;
 	}
+
 	Complex set(float real) {
 		return set(real, 0);
 	}
+
 	float norm() {
 		return real * real + imag * imag;
 	}
+
 	float abs() {
 		return (float) Math.sqrt(norm());
 	}
+
 	float arg() {
 		return (float) Math.atan2(imag, real);
 	}
+
 	Complex polar(float a, float b) {
 		real = a * (float) Math.cos(b);
 		imag = a * (float) Math.sin(b);
 		return this;
 	}
+
 	Complex conj() {
 		imag = -imag;
 		return this;
 	}
+
 	Complex add(Complex other) {
 		real += other.real;
 		imag += other.imag;
 		return this;
 	}
+
 	Complex sub(Complex other) {
 		real -= other.real;
 		imag -= other.imag;
 		return this;
 	}
+
 	Complex mul(float value) {
 		real *= value;
 		imag *= value;
 		return this;
 	}
+
 	Complex mul(Complex other) {
 		float tmp = real * other.real - imag * other.imag;
 		imag = real * other.imag + imag * other.real;
 		real = tmp;
 		return this;
 	}
+
 	Complex div(float value) {
 		real /= value;
 		imag /= value;
 		return this;
 	}
+
 	Complex div(Complex other) {
 		float den = other.norm();
 		float tmp = (real * other.real + imag * other.imag) / den;