Ex: Write a C program to print square of given number using function. How to write a C program to print square of given number using function. C program to print square of given number using function.

Input from user:

Enter the number: 4

Expected output:

Square of given number is= 16.0000

  Step by Step logic of the given program:

1. First declare function give it meaningful name square().

2. Inside the main() accept input (number) from user declare varible say no.

3. Call the square() inside the printf() directly (It will print returned value means square of given number).

4. In the body of square() use simple logic of square which is-
Square=no*no;

5. After that return square.

  C Program to print Square of given Number using Function:

#include<stdio.h>
float square(float);

int main()
{
float no;
printf("Enter the number: ");
scanf("%f",&no);

printf("Square of given number is= %f",square(no));
}
float square(float no)
{
float square=no*no;
return square;
}


Above program shows the following output: