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Chruser · Posted 2008-11-22, 05:11 PM in reply to Chruser's post "LaTeX BB Code tests"

Wikipedia rendering comparison:

Given ''n'' + 1 control points Pi, the rational Bézier curve can be described by:

$\reverse \mathbf{B}(t) = \frac{ \sum_{i=0}^n b_{i,n}(t) \mathbf{P}_{i}w_i } { \sum_{i=0}^n b_{i,n}(t) w_i } $

or simply

$\reverse \mathbf{B}(t) = \frac{ \sum_{i=0}^n {n \choose i} t^i (1-t)^{n-i}\mathbf{P}_{i}w_i } { \sum_{i=0}^n {n \choose i} t^i (1-t)^{n-i}w_i }. $