lab8c

/*DIRECTIONS Take the notes for the Complex structure and write regular c-type functions that add, subtract,
and multiply complex numbers. Use the following function prototypes.

Complex addComplex(Complex x, Complex y);
Complex subtractComplex(Complex x, Complex y);
Complex multiplyComplex(Complex x, Complex y);

If time allows, write a function that divides complex numbers.
mathew myers
Template blank Source document*/

#include<iostream>
#include<string>
#include<sstream>
#include<cmath>
//globals
using namespace std;
struct Complex{

    // Data members that define a complex number a + bi
    double a,b;

    // function within a data structure = METHOD
    // functions specific to this type of object.
    void printComplex(void);

};
Complex addComplex(Complex x, Complex y);
Complex subtractComplex(Complex x, Complex y);
Complex multiplyComplex(Complex x, Complex y);
Complex divideComplex(Complex x, Complex y);
bool runAgain(void);


void main()
{
//Declarations
    do{
//inputs

//outputs
    }while( runAgain() );

}

void Complex::printComplex(void){

    if( b >= 0 )
        cout << a << " + " << b << "i" << endl;
    else
        cout << a << " - " << -1*b << "i"<< endl;

}
Complex addComplex(Complex x, Complex y)
{
    Complex z;
    z.a = x.a + y.a;
    z.b = x.b + y.b;
    return z;
}
Complex subtractComplex(Complex x, Complex y)
{
    Complex z;
    z.a = x.a - y.a;
    z.b = x.b - y.b;
    return z;
}
Complex multiplyComplex(Complex x, Complex y)
{
    Complex z;
    z.a = ((x.a*y.a)-(x.b*y.b));
    z.b = ((x.a*y.b)+(x.b*y.a));
    return z;
}
Complex divideComplex(Complex x, Complex y)
{
    Complex z;
    Complex temp1;
    Complex temp2;
        temp1 = y;
        temp1.b = temp1.b * -1;
        temp2 = multiplyComplex(y,temp1);
        temp1 = multiplyComplex(x,temp1);
        z.a = temp1.a / temp2.a;
        z.b = temp1.b / temp2.a;
    return z;
}
bool runAgain(void){
    char userResponse;

    cout << "\nWould you like to run again (y or n): ";
    cin >> userResponse;

    if(userResponse == 'y')
        return(true);

    return(false);
}
/* lazy copy stuff
if()
    {
    }
else if()
    {
    }
else
    {
    }

for( int i = 0; i < x;i++)
    {
    }
switch()
    {
        case :
        break;
        case :
        break;
        default:
    }
*/