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92 lines
1.8 KiB
92 lines
1.8 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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float 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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cnumber(float a, float 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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cnumber(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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// Member functions
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cnumber conjugate() const {
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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( (this->r * that.r ) - (this->i * that.i) , (this->r * that.i) + (that.r * this->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 numerator( (this->r * that.r ) - (this->i * ( that.i * -1)) , (this->r * (that.i * -1)) + (that.r * this->i) );
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cnumber denominator( (that.r * that.r ) - (that.i * ( that.i * -1)) , (that.r * (that.i * -1)) + (that.r * that.i) );
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cnumber ratio(numerator.r / denominator.r, numerator.i / denominator.r);
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return ratio;
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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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