*Square Root of a Number*

*Square Root of a Number*

Write a C++ program to find Square Root of a Number. Here’s simple program to find Square Root of a Number using pow( ) function in C++ Programming Language.

For calculate **Square Root** of a number we multiply number by 0.5 because square root of any number means power of 1/2 and 1/2=0.5.

- pow( ) is a predefined function in math.h header file, it is used for calculate power of any number.

And one **another method** for this program is use **sqrt( )** function it is pre-defined in math.h header file.

- sqrt() is a predefined function in math.h header file, it is used for calculate square root of any number.

Here is source code of the C++ program to find Square Root of a Number. The C++ program is successfully compiled and run(on Codeblocks) on a Windows system. The program output is also shown in below.

**SOURCE CODE : :**

**SOURCE CODE : :**

/* C++ program to find Square Root of a Number */ #include<iostream> #include<math.h> using namespace std; int main() { int num; double ans; cout<<"Enter any positive integer :: "; cin>>num; ans=pow((double)num,(double)0.5); cout<<"\nSquare Root of [ "<<num<<" ] is :: "<<ans<<"\n"; return 0; }

**Output : :**

**Output : :**

/* C++ program to find Square Root of a Number */ Enter any positive integer :: 50 Square Root of [ 50 ] is :: 7.07107 Process returned 0

Above is the source code for C++ program to find Square Root of Number which is successfully compiled and run on Windows System.The Output of the program is shown above .

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