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72 lines
1.2 KiB
72 lines
1.2 KiB
#include <iostream>
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using namespace std;
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class cnumber {
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private:
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int r, i;
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bool signr, signi;
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bool get_sign(int i) {
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return (i >= 0);
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}
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public:
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// Constructor
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cnumber(int a, int b) {
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r = a;
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i = b;
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signr = get_sign(r);
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signi = get_sign(i);
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}
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// Member functions
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cnumber conjugate() {
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cnumber z(this->r, this->i * -1);
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return z;
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}
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// Operators
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cnumber operator+(const cnumber &that) {
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cnumber z(this->r + that.r, this->i + that.i);
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return z;
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}
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cnumber operator-(const cnumber &that) {
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cnumber z(this->r - that.r, this->i - that.i);
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return z;
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}
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cnumber operator*(const cnumber &that) {
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cnumber z( (that.r * this->r ) - (that.i * this->i) , (that.r * this->i) + (this->r * that.i) );
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return z;
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}
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friend ostream &operator<<( ostream &os, const cnumber &z ) {
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if (z.r != 0) {
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os << z.r;
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if (z.signi && (z.i != 0)) {
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os << '+';
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}
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}
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if (z.i != 0) {
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if ((z.i != 1) && (z.i != -1)) {
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os << z.i;
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}
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else {
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if (! z.signi) {
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os << '-';
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}
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}
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os << 'i';
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}
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return os;
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}
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void operator=(const cnumber &z ) {
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r = z.r;
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i = z.i;
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signr = z.signr;
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signi = z.signi;
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}
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};
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