Quote:
Originally posted by KnifeMissle
...as convoluted as it is...
sin( 2*arcos((r-x)/r) )
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Oops. He didn't.
As one of my math professors said: if you have to take the the sin of arccos (or any arc function aside from sin) you are convoluting the equation.
sin(arccos x) is just nasty!
sin(arcsin x) is however fundamental.