In case you're wondering... $ gcc -o yanim yanim.c -lm yanim.c:1:1: warning: data definition has no type or storage class [enabled by default] yanim.c: I

In case you're wondering... $ gcc -o yanim yanim.c -lm yanim.c:1:1: warning: data definition has no type or storage class [enabled by default] yanim.c: In function ‘main’: yanim.c:5:24: warning: incompatible implicit declaration of built-in function ‘cos’ [enabled by default] yanim.c:5:33: warning: incompatible implicit declaration of built-in function ‘sin’ [enabled by default]