# Subtraction of two complex number in C by R4R Team

Complex number:

Example :
2+3i
0+4i
-1-9i
These kind of number are known as complex number.
where 'i' is root -1.

Syntax-
a+bi
where,
'a' is the real part of the complex number
'b' is the imaginary part of the complex number.

Subtraction of complex number:
x=3+4i
y=1+i
then x-y=2+3i

program-

#include< stdio.h>
#include< string.h>
int main() {
int r1,i1,r2,i2;
printf("Enter real and imaginary part of first complex number\n");
scanf("%d%d",&r1,&i1);
printf("Enter real and imaginary part of second complex number\n");
scanf("%d%d",&r2,&i2);
printf("Subtraction of second complex number by first complex number is %d+%di",r1-r2,i1-i2);
}

output-

Enter real and imaginary part of first complex number
3
4
Enter real and imaginary part of second complex number
1
2
Subtraction of second complex number by first complex number is 2+2i

-In this program, we take an input of real and imaginary part of the two complex number.
-Subtract real part to real part, and subtract imaginary part to imaginary part, then display both things.