Bézier(n,t)= (1-t) B(n,t) + t B(n,t)                    
             __ n               n      __ n         n   
           = ❯      w  (1 - t) B (t) + ❯      w  t B (t)
             ‾‾ i=0  i          i      ‾‾ i=0  i    i