In this tutorial you will learn about the C Program to Find Square Root of a Given Number and its application with practical example.
In this tutorial, we will learn to create a C program that will find Square Root of given number using C programming.
Prerequisites
Before starting with this tutorial we assume that you are best aware of the following C programming topics:
- C Operators.
- Basic input/output.
- In-built functions.
- mathematical functions.
What Is Square root?
Squares are found when numbers multiplying by itself 5 * 5= 25. Where a square root of a number on getting multiplied by itself gives the original √25 = 5. In other word a value that can be multiplied by itself to give the original number. 
C Program to Find Square Root of a Given Number.
Here in this program we are going find square root of a given number first of all we take a value from user and pass this value to in-built function to find square root of a number.
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#include <stdio.h> #include <math.h> int main() { double no, sq_rt; // declaring variables printf("Enter any number to find square root: "); // taking values from user. scanf("%lf", &no); sq_rt = sqrt(no); // calculating square root. printf("Square root of %.2lf is = %.2lf", no, sq_rt);//printing values. return 0; } |
Output
In the above program, we have first declared and initialized a set variables required in the program.
- no = Which will hold given value by user
- ctr = It will hols square root of a number.
Function sqrt() takes only a single parameter(no) and returns the square root .which we hold in sq_rt variable.
with the help of sq_rt variable we can print the square of given number by user.
Explanation
Explanation of Square root
Square root of a number is a value,that will occurs on multiplication by itself gives the original number. Any positive number, when multiplied by itself 5 * 5= 25 , represents the square of that number. The square root of the square of a positive number gives the original number √25 = 5.
Example
Input
Enter any number: 16
Output
Square root of 16 = 4.
