This C++ program computes the square root of a number using math library. The program takes input from the standard input, computes the value and prints it.

Here is the source code of the C++ program computes the square root of a number using math library. The C++ program is successfully compiled and run on a Linux system. The program output is also shown below.

`/*`

`* C++ Program to Compute Square Root of a number using Standard Library`

`*/`

`#include <iostream>`

`#include <cmath>`

`#include <limits>`

int main()

`{`

double output, input, min, max;

std::cout << "Enter the value : ";

std::cin >> input;

std::cout << std::endl;

min = std::numeric_limits<double>::min();

max = std::numeric_limits<double>::max();

if (input >= min && input <= max)

`{`

output = sqrt(input);

std::cout << "Square root of " << input

<< " = " << output << std::endl;

`}`

`else`

`{`

std::cerr << "Error: " << input << " not within limits"

<< std::endl;

`}`

return 0;

`}`

$ a.out Enter the value : 1024.0 Square root of 1024 = 32

**Sanfoundry Global Education & Learning Series – 1000 C++ Programs.**

If you wish to look at all C++ Programming examples, go to C++ Programs.