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prog_tom
Dec 12th, 2001, 07:51 PM
For the math real men:

Suppose a bone, experiencing 3 directional forces, in return the dog on the left goes at 20 newtons, at right goes 40 newtons, at top 20 newtons

(-20,0)
(0,20)
(40,0)

r=20,20

Do you know what the degrees it is? How much Newtons it is?

HarryW
Dec 12th, 2001, 08:22 PM
You want a force vector, yes? That'll be 45 degrees, sqr(800) Newtons. About 28 Newtons.

kedaman
Dec 12th, 2001, 09:14 PM
Using euler transformation
x+yi=sqr(x^2+y^2)e^atn(x/y)i
phi=atn(x/y)
arcus tangens on calculators and in vb screws up on y=0 and can't handle the two other quadrants, in C++ you can use atan2