I have a code that compiles on my end, but not on a SSH'd AFS machine?

my code: (finds volume/Surface area of a sphere, in C)


#include%26lt;stdio.h%26gt;


#include%26lt;stdlib.h%26gt;


#include%26lt;math.h%26gt;


int main(void){


const double pi = 3.141592654;


double x;


double volume = (4.0*pi)/3.0, SA = 4.0*pi;


printf("Enter the radius of the sphere: ");


scanf("%lf" , %26amp;x);


volume *= pow(x,3);


SA *= pow(x,2);


printf("The volume is %f and the surface area is %f.\n", volume, SA);


return 0;


}





Compiles fine on my mac





but I get


unix2% gcc -o Sphere Sphere.c


Undefined first referenced


symbol in file


pow /var/tmp//ccMxB6b1.o





Formatting is lost here, so it says: Undefined symbol pow, first referenced in file /var/tmp//ccMxB6b1.o





on an SSH'd machine. I need it to compile on there though, as it's counting on my grade. I have to use pow, I can't just multiply them, says my assignment. So...help please?

I have a code that compiles on my end, but not on a SSH'd AFS machine?
You need to tell the linker to include the math library. This is done by adding -lm to the gcc line. Something like





gcc -o Sphere Sphere.c -lm





should work.





The manual page for the funciton should indicate what linker option/library is needed. So you should be able to figure errors like this out by using the command:





man pow

land survey