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Equation solving help :(

Blitz3D Forums/Blitz3D Programming/Equation solving help :(

Paolo(Posted 2004) [#1]
I have three circumferences and I know there is a piont
where the three circles intersec themselves.

so if a circle with centre P(a,b) and radius R
then its equation is:

(X-a)^2+(Y-b)^2=R^2

so I need to find a X,Y that satisfy the 3 equations at
the same time.

So:

X= (...?...)
Y= (...?...)


Help really appreciated :)

Thanks!
Paolo


Red(Posted 2004) [#2]
Circle with center (a,b):
------------------------
X=cos(Alpha)*R+a
Y=sin(Alpha)*R+b
Alpha=tan-1(Y/X)=sin-1(Y/R)=cos-1(X/R)


Paolo(Posted 2004) [#3]
thanks Ed :)
will give that a try...

Paolo.