I'd need a very easy to use drawing c or c++ library. This means that I don't need to put buttons, frames or anything else in there, but I need just to draw points, circles, lines on a graphic window. Is that possible?
I've read about the difference between double precision and single precision. However, in most cases, float and double seem to be interchangeable, i.e. using one or the other does not seem to affect the results. Is this really the …