# Make 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.

How make complex number ?
We need two thing :
-real part of complex number number
-imaginary part of complex number

Syntax-
a+bi

Where 'a' is the real part.
and 'b' is the imaginary part.

To create a complex number type structure, there are many logic may be possible, one of the way to create a complex number is :

program-

#include< stdio.h>
#include< string.h>
char complex(char r[10], char im[10])
{
char s[2]="+";
char i[2]="i";
s[1]='';
i[1]='';
strcat(r,s);
strcat(r,im);
strcat(r,i);
printf("Complex number is %s",r);
}
int main() {
char s1[10],s2[10];
printf("Enter real and imaginary part of the complex number\n");
scanf("%s%s",&s1,&s2);
complex(s1,s2);
}

output-

Enter real and imaginary part of the complex number
3
4
Complex number is 3+4i

-In this program, we take an input of real part and imaginary part of the complex number.
-Then pass in function 'complex()', which make complex number in the form of string and display on the screen.