Originally Posted by
bashley
Thanks Kontact. Actually measuring the bike wouldn't be a derivation, but I get your point. Not a math guy, the formula, whatever that might be, is above my pay grade. The online calculator is helpful.
The online calculator is the formula. You can probably "show source code" and read is, but all the formula is doing is drawing an imaginary point, a horizontal, vertical and angled line and measuring the result. It is all the same thing measuring a few points and lines or measuring the real thing.