The **`exp2()` function** is used to compute 2 raised to the power of `x` in C.

# Library
```c++
#include<math.h>
```

# Syntax
Below is the declaration of the `exp2()` function,

```c++
double exp2(double x);
```
where `x` is the exponent passed as a parameter to the function.
The function returns 2 raised to the power of `x` as a `double` value.

# Code


#include <math.h>
#include <stdio.h>

int main()
{
   printf("Value of 2 raised to power 3: %f", exp2(3));
   printf("\nValue of 2 raised to power -2: %f", exp2(-2));
   return 0;
}

What is exp2() in C?

The exp2() function computes 2 raised to the power of x, returning a double value.