This reminds me of a page on fast and accurate geometric primitives; the code requires that you to flip the Intel FPU into a reduced precision mode to make the

This reminds me of a page on fast and accurate geometric primitives; the code requires that you to flip the Intel FPU into a reduced precision mode to make the error easier to estimate. http://www.cs.cmu.edu/~quake/robust.pc.html http://www.cs.cmu.edu/~quake/robust.pc.html