Hypotenuse Problem

I am working on a problem for class and I am getting a
[Linker error] undefined reference to `hypotenuse(double, double)' message. Can someone explain why this is happening. Here is my code:

Code:

---


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

/* Function Prototype */
double hypotenuse( double sidea, double sideb );

/* Function main begins program execution */
int main()
{
    double sidea; /* Variable in which sidea will be stored */
    double sideb; /* Variable in which sideb will be stored */
   
    printf( "Enter the length of side a: \n" ); /* Prompt for input */
        scanf( "%lf", &sidea); /* Read number from user */
    printf( "Enter the length of side b: \n\n" ); /* Prompt for input */
        scanf( "%lf", &sideb); /* Read number from user */
    printf( "The length of side c is %lf", hypotenuse( sidea, sideb ) ); /* Display results */
                 
  return 0; /* Indicates that program ended successfully */
 
} /* End function main */

double hypontenuse( double sidea, double sideb )
{

    return sqrt( pow( sidea, 2) + pow( sideb, 2) );
   
} /* End function main */

---

Thanks in advance

DMKanz07

Code:

---

} /* End function main */

double hypontenuse( double sidea, double sideb )
{

    return sqrt( pow( sidea, 2) + pow( sideb, 2) );

---

hypontenuse? ;)

Thank you - I feel silly for missing that. I guess that is what happens when you stare for to long :)

Thanks again

DMKanz07