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Mon 7 Aug, 2006 03:31 am
Hello!
If you be so kind to help me !!
My problem is this :
If there is a cycle with a central point: S(1,2) and r(radius)=2. Please can you give me a generale formula to finde a tangent on that cycle.
I` did this: if radius is 2 than : 2+1=3 and -2+1= -1. So t=3 and t=-1 (this is correct),but I` do not know is this the right way to get them ,maybe, I` got this by chance.
Because of that I` need to know the general formula or procedure, how to get a tangent, if I` know ,a r,and S.
Please help me!!!
if a cycle is a circle, put the center at (x0,y0) & use the radius (r) to determine the formulae for the circle.
The general formulae for a circle on an x,y coordinate space is
(X-x0)^2+(Y-y0)^2=r^2
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