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Bezier curve : Problem deriving control points from matrix form
equation 3 but using p2.x and t2=2/3 we have
c2=a2P1.x+b2P2.x (5)
upon writing in matrix form we have
[c1]=[a1 b1][P1.x]
[c2]=[a2 b2][P2.x]
Or
C=BP BP=C
and
P=inverse(B)C
Here is the java …