8
Complex(double r = 0, double i = 0) : rpart(r), ipart(i) { }
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Complex(const Complex &c) : rpart(c.rpart), ipart(c.ipart) { }
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Complex &operator=(const Complex &c) {
15
Complex operator+(const Complex &c) const {
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return Complex(rpart+c.rpart, ipart+c.ipart);
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Complex operator-(const Complex &c) const {
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return Complex(rpart-c.rpart, ipart-c.ipart);
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Complex operator*(const Complex &c) const {
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return Complex(rpart*c.rpart - ipart*c.ipart,
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rpart*c.ipart + c.rpart*ipart);
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Complex operator-() const {
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return Complex(-rpart, -ipart);
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double re() const { return rpart; }
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double im() const { return ipart; }