"Koby Zalmanson" <zkoby@inter.net.il> skreiv: > When I tried to use M_PI in some of the calculations of an angle the > calculation was 0 for example: 35/180*M_PI > do you know why? Yes, C assumes you want an integer division. Try typing 35./180.*M_PI to force it to use floats. -- amundbørsand <amund@c2i.net>