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This commit is contained in:
Micke Nordin 2020-04-18 11:16:20 +02:00
parent 523f2fc0b6
commit 23d1ea1faa
2 changed files with 32 additions and 6 deletions
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10
cnumber.cpp
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@ -3,15 +3,21 @@
int main() { int main() {
cnumber a(1, -3); cnumber a(3,2);
cnumber b(2, 5); cnumber b(4,-3);
cout << "a = " << a << endl; cout << "a = " << a << endl;
cout << "a* = " << a.conjugate() << endl; cout << "a* = " << a.conjugate() << endl;
cout << "a*a* = " << a * a.conjugate() << endl;
cout << "b = " << b << endl; cout << "b = " << b << endl;
cout << "b* = " << b.conjugate() << endl; cout << "b* = " << b.conjugate() << endl;
cout << "b*b* = " << b * b.conjugate() << endl;
cout << "a + b = " << a + b << endl; cout << "a + b = " << a + b << endl;
cout << "(a + b)* = " << (a + b).conjugate() << endl; cout << "(a + b)* = " << (a + b).conjugate() << endl;
cout << "a - b = " << a - b << endl;
cout << "(a - b)* = " << (a - b).conjugate() << endl;
cout << "a * b = " << a * b << endl; cout << "a * b = " << a * b << endl;
cout << "(a * b)* = " << (a * b).conjugate() << endl; cout << "(a * b)* = " << (a * b).conjugate() << endl;
cout << "a / b = " << a / b << endl;
cout << "(a / b)* = " << (a / b).conjugate() << endl;
} }

28
cnumber.hpp
View file

@ -4,7 +4,7 @@ using namespace std;
class cnumber { class cnumber {
private: private:
int r, i; float r, i;
bool signr, signi; bool signr, signi;
bool get_sign(int i) { bool get_sign(int i) {
return (i >= 0); return (i >= 0);
@ -18,9 +18,23 @@ class cnumber {
signr = get_sign(r); signr = get_sign(r);
signi = get_sign(i); signi = get_sign(i);
}
cnumber(float a, float b) {
r = a;
i = b;
signr = get_sign(r);
signi = get_sign(i);
}
cnumber(const cnumber &z) {
r = z.r;
i = z.i;
signr = z.signr;
signi = z.signi;
} }
// Member functions // Member functions
cnumber conjugate() { cnumber conjugate() const {
cnumber z(this->r, this->i * -1); cnumber z(this->r, this->i * -1);
return z; return z;
} }
@ -36,14 +50,20 @@ class cnumber {
return z; return z;
} }
cnumber operator*(const cnumber &that) { cnumber operator*(const cnumber &that) {
cnumber z( (that.r * this->r ) - (that.i * this->i) , (that.r * this->i) + (this->r * that.i) ); cnumber z( (this->r * that.r ) - (this->i * that.i) , (this->r * that.i) + (that.r * this->i) );
return z; return z;
} }
cnumber operator/(const cnumber &that) {
cnumber numerator( (this->r * that.r ) - (this->i * ( that.i * -1)) , (this->r * (that.i * -1)) + (that.r * this->i) );
cnumber denominator( (that.r * that.r ) - (that.i * ( that.i * -1)) , (that.r * (that.i * -1)) + (that.r * that.i) );
cnumber ratio(numerator.r / denominator.r, numerator.i / denominator.r);
return ratio;
}
friend ostream &operator<<( ostream &os, const cnumber &z ) { friend ostream &operator<<( ostream &os, const cnumber &z ) {
if (z.r != 0) { if (z.r != 0) {
os << z.r; os << z.r;
if (z.signi && (z.i != 0)) { if (z.signi && (z.i > 0)) {
os << '+'; os << '+';
} }
} }