C Program to Add Two Complex Numbers by Passing Structure to a Function
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In this sample C program, we take two complex numbers as structures and add them with the use of functions. To understand this example, you should have the knowledge of structures and functions .
Related Topics

Structures
Functions

Code

```
/*C Program to Add Two Complex Numbers by Passing Structure to a Function*/
#include <stdio.h>
typedef struct complex
{
float real;
float imag;
} complex;
complex add(complex n1,complex n2);
int main()
{
complex n1, n2, temp;
printf("For 1st complex number \n");
printf("Enter real and imaginary part respectively:\n");
scanf("%f %f", &n1.real, &n1.imag);
printf("\nFor 2nd complex number \n");
printf("Enter real and imaginary part respectively:\n");
scanf("%f %f", &n2.real, &n2.imag);
temp = add(n1, n2);
printf("Sum = %.1f + %.1fi", temp.real, temp.imag);
return 0;
}
complex add(complex n1, complex n2)
{
complex temp;
temp.real = n1.real + n2.real;
temp.imag = n1.imag + n2.imag;
return(temp);
}
```

Output

```
For 1st complex number
Enter real and imaginary part respectively: 2.3
4.5
For 2nd complex number
Enter real and imaginary part respectively: 3.4
5
Sum = 5.7 + 9.5i
```

Explanation

C Program to Add Two Complex Numbers by Passing Structure to a Function

In the structure complex , we are using float datatype for variables, real and imag since our concern is to add any two complex numbers with a possible fractional value.

In the main() function, the real part and the imaginary part of the complex numbers are taken separtely using scanf() .

The structures n1 and n2 are passed as an argument of function add() . The function computes the sum and returns the structure variable temp to the main() function.

The final result is printed using printf() throught the main() function.

Tags

#struct
#return

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