my first boing ball - C - but... FPU problem?

[Tiago]

When you compiled with dcc did you use the -lm option? e.g "dcc tiago.c -lm -o tiago"

the compiler i used is graphical, it's not a command line.
The only optins/settings i chouse was:

os target: 3.0
cpu target: 68020

nothing more, the rest of the options are default....

I think i must try the other compiler you were talking about

C is not easy....