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/**
* @author Rivan
*/
public class Complex {
private double r;
private double i;
public Complex(double r, double i) {
this.r = r;
this.i = i;
}
public static double getRealPart(double r) {
return r;
}
public static double getImagePart(double i) {
return i;
}
public Complex ComplexAdd(Complex c) {
return new Complex(r + c.r, i + c.i);
}
public Complex ComplexSub(Complex c) {
return new Complex(r - c.r, i - c.i);
}
public Complex ComplexMulti(Complex c) {
return new Complex(r * c.r - i * c.i, r * c.i + i * c.r);
}
public Complex ComplexDiv(Complex c) {
return new Complex((r * c.i + i * c.r) / (c.i * c.i + c.r * c.r), (i * c.i + r * c.r) / (c.i * c.i + c.r * c.r));
}
public String toString() {
String s = " ";
if (r == 0)
s = i + "";
else {
if (i > 0)
s = r + "+" + i + "i";
if (i == 0)
s = r + "";
if (i < 0)
s = r + "-" + -i + "i";
}
return s;
}
}
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