# C pow() function

## C pow() function - Compute power

Syntax:

`double pow(double x, double y)`

The pow() function is used to calculate the value of x to the power of y.

Parameters:

Name Description Required /Optional
x Floating point base value. Required
y Floating point power value. Required

Return value from pow()

• Returns the value 1 if y is 0.
• Returns 0 if x is 0 and y is negative.
• Returns 0 if both x and y are 0, or if x is negative and y is not an integer.

Example: pow() function

The following example shows the usage of pow() function.

``````
#include <math.h>
#include <stdio.h>
int main(void)
{
double x, y, z;

x = 2.0;
y = 4.0;
z = pow(x,y);
printf("%lf to the power of %lf is %lf\n", x, y, z);
x = 2.2;
y = 3.2;
z = pow(x,y);
printf("\n%lf to the power of %lf is %lf\n", x, y, z);
}
``````

Output:

```2.000000 to the power of 4.000000 is 16.000000

2.200000 to the power of 3.200000 is 12.466731
```

C Programming Code Editor:

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