complex number

tinzi · #1 31-May-2004, 20:53

I'm using VB6 and tried to add two sets of complex numbers. This is the codes me and my friend worked at but could go no where. See if i can get any fix here. THanks

CPP / C++ / C Code:

#include <iostream>
using std::endl;
using std::ostream;
using std::cout;


class complex {
	public:
		complex ();
		complex (double.double);
		void setreal (double)
			double getreal ();
		double get image;
		complex operator+(complex);
		void print ()

private;
		double real, imag;
};

complex::complex() {
	real = imag = 0

		complex::complex(double r. double i) {
		real = r;
		imag = i;
	}

	void complex::setreal(double r) {
		real = r;
	}

	double complex::getreal(){
		return real;
		double complex::getimag(){
			return imag;
			complex complex::operator *=+(complex x) {
				complex result;
				result.real = x.real + real;
				result.imag = x.imag + imag;
				return result;
			}

			void complex::print (){
				cout <<"real = " <<real<<", image = "<<imag<<endl; 
			}

			int main (void) {
				complex a;
				complex b (3,5);
				cout <<"Before: b.real = " <<b.getreal()<<endl;
				b.setreal (9)
					cout << "after: b.real = "<<b.getreal()<<endl;

				complex c1 (3,5);
				complex c2 (2,4);
				complex c3 = (c1+c2);
				c3.print ();

			return 0;
			}

Max Payne · #2 31-May-2004, 21:37

Hello tinzi,

Welcome to the GIDforum and please read this first :GIDForums enables New C/C++ tags

first of all, u and your friend job is really a mess!! lots of missing backets, lots
of typo, missing semiclones, ... did u type this whole code in one go??

U guys need to learn to program step by step, u can't just do one program by
tryng to type the whole program at once, this type of errors and typos is
what u will get,

Here is your code:

CPP / C++ / C Code:

#include <iostream>
using std::endl;
using std::ostream;
using std::cout;


class complex 
{
public:
	complex ();
	complex (double,double);
	void setreal (double);
	double getreal ();
	double getimage();
	complex operator+(complex);
	void print ();

private:
	double real, imag;
};

complex::complex() 
{
	real = imag = 0;
}

complex::complex(double r, double i) 
{
	real = r;
	imag = i;
}

void complex::setreal(double r)		
{
	real = r;
}

double complex::getreal()
{
	return real;
}

double complex::getimage()	
{
	return imag;
}

complex complex::operator +(complex x) 
{
	complex result;
	result.real = x.real + real;
	result.imag = x.imag + imag;
	return result;
}

void complex::print ()
{
	cout <<"real = " <<real<<", image = "<<imag<<endl; 
}

int main (void) 
{
	complex a;
	complex b (3,5);
	cout <<"Before: b.real = " <<b.getreal()<<endl;
	b.setreal (9);
	cout << "after: b.real = "<<b.getreal()<<endl;

	complex c1 (3,5);
	complex c2 (2,4);
	complex c3 = (c1+c2);
	c3.print ();

	return 0;
}

tinzi · #3 01-Jun-2004, 15:47

Thank you very much for fixing the codes for us. After working around with your codes, me and my friend can do subtraction and multiplication. Multiplication did takes time to figure it out, but we are totally stucked on division... Does it needs two formulas to put it together??? so confusing....

I have no idea how to put the multiplication into the original codes, i think we need some explainations to understand even with the solution because we are still newbie...

very appreciated for the help, thank you very much!

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