Hello, i'm having trouble evaluating my gamma factor for my special relativity homework, because I need to compute 1 minus a very small number (8.57*10^-13). My calculator treats this value as simply 1, as does Mathematica. Although I don't know much about it, and maybe there's a way to force it to consider the small number. Are there any methods that I could do by hand? (I am also looking for a computer method elsewhere, but I figured this might be interesting). Thanks!