The **`cpowl` function** is a C library function that raises a complex number to a complex power. 

The following illustration shows the functionality of the `cpowl` function:

To use the `cpowl` function,  we need to include the `complex.h` header file, as shown below:
```C
#include <complex.h>
```

# Syntax 
The `cpowl` function takes two arguments and returns the complex power. It is declared as follows:

# Parameters 
The `cpowl` function takes two arguments of the `long double complex` type. 

* The first parameter is the number we want to raise.

* The second parameter is the power with which we want to raise the number.

# Return Value 
The `cpowl` function computes and returns the power in the `long double complex` type. 

# Example
The code below shows the use of `cpowl` function in C:

#include <stdio.h>
#include <complex.h>

int main() {

  //Declare x and y 
  long double complex x = -1.5 + I*1.5;
  long double complex y = 3.0;

  //Call cpowl i.e x^y
  long double complex ans = cpowl (x,y);

  //Display the result
  printf ("(1+2i)^3 = %f%+fi\n", creal(ans), cimag(ans) );

  return 0;
}

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What is cpowl() in C?

Raises a complex number to a complex power using the cpowl function in C's complex.h library.