Question

So my program makes a random (x,y) arrays, what i want to do is to make x a real number and y imaginary number and add them:
my main program

    #include "complx.h"                          
    int main(){
    const int n = 2;
    Complex a[n];                          
    getData(a,n);
    printArray(a,n);
    isort(a,n);
    printArray(a,n);
    complex_sum(a,n);
    return 0;
}

it also prints and arranges the arrays, but what I am interested in is how to add the arrays, when for example I would use 4 arrays (x,y)(x,y)(x,y)(x,y).

this is how i get a random numbers

    void getData(Complex a[],int n){
    int  i;
    srand(time(0)); //If comment this out, get same sequence with each run.      
    for(i=0; i<n; i++){
        a[i].x = rand()%3;  //3 and 10 are just for testing isort                
        a[i].y = rand()%10;
    }
    return;
}

and here is how i’m trying to add it:

void complex_sum(Complex a[], int n){
    for (int i=0; i<n; i++)
      cout<<"("<<a[i].x+a[i].x<<")";
    cout<<endl;
    return;

I am stuck on how to add (x,y)(x,y)= x+yi

thanks

Answer 1

I am not completely inline with the way you are attempting; but to sum n number of complex numbers stored in an array and print it on screen you can try the following:

void complex_sum(Complex a[], int n){
    int real=0,img=0;
    for (int i=0; i<n; i++){
        real+=a[i].x;
        img+=a[i].y;
    }
    cout<<"("<<real << "+" << img << "i)";
}