Square Root Program in C++

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.

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