1. Maths Shortcuts
- Posted by Lmailles at AOL.COM Jul 03, 1998
- 433 views
Someone (Irv or Jiri I think) mentioned a while back that a lot of maths ops can be shortcutted - specifically square roots and arctans. I want to do a distance calculation, in both 2d and 3d, and am currently using pythagorus' standard rule : dis = sqrt( (x2-x1)^2 + (y2-y1)^2) dis3d = sqrt( (x2-x1)^2 + (y2-y1)^2 + (z2-z1)^2) (^ operator used for simplicity) Is there a reasonable shortcut here ? For my current usage I only need an approximation - accuracy to 1dp would be absolutely fine. TIA @@@ \ | / \|/ "Our greatest failure in life is our inability to achieve an objective view of reality" -Les Mailles Daniel