>>>Correct me if I'm wrong here, but the Gravitational formula is G*(m1*m2)/r^2. In this case, no matter how I apply the acceleration due to gravity I still need to use the pythagorean (which needs sqrt()) to find the distance (the r in the formula).
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>Thats sort of what I thought.
Well, it seems that Mike Yearwood came up with an alternative. However, I don't think calculating a square root should be more work for the computer than calculating trigonometric functions (both use numerical methods). And the use of sqrt() is easier to read.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
