double pow not working?

[Tarento]

printf("Approximate cos(%d) = %lf", xdeg, 1-(double pow(radians, 2)/2) + (double pow(radians, 4)/24);

This is just a part of it, but everything seems to be right except for an error I get.

test.c:32: error: parse error before "pow"
test.c:32: error: parse error before ';' token

Anyone know if this is a very simple mistake or is something wrong with my whole program?

[joed]

Double is the return type, you don't need it in the program. Just do pow(a, b).

[whiteflags]

You aren't supposed to specify a return value when you make a function call. C finds the correct function to use by name and parameter list.

printf("Approximate cos(%d) = %lf", xdeg, 1- pow(radians, 2)/2 + pow(radians, 4)/24); 

That will run fine.

The exception here is when you want to typecast the return value, where you would have syntax issues:

 printf("Approximate cos(%d) = %lf", xdeg, 1- (double) pow(radians, 2)/2 +  (double) pow(radians, 4)/24); 

This runs fine too, but you should only do this when the function the compiler will call will not return the necessary return type.

[dwks]

Your second error was due to a missing ')'.