Hi,

I am studying about Bezeir Curve. I found following eq:

I know that:P(u) = Σ Pk BEZk,n (u)

P(u) = Position vector which tells the path of curve between any two consecutive control points

Σ = Summation sign

P_{k}= control point position

BEZ_{k,n}= Bernstein polynomial having a binomial component multiplied by: u^{k}* (1-u)^{m-k}

I cant understand what is "u"?

Plz guide me about "u" and if i am wrong in understanding any component of this equation.

Zulfi.