sentences:  It was recorded at a 2002 gig.Recorded at Walthamstow Assembly Hall, London, 13 December 2002 by Colin Allen
  
  
  
  
  
  Control point (mathematics)
  
  In computer-aided geometric design a control point is a member of a set of points used to determine the shape of a spline curve or, more generally, a surface or higher-dimensional object.For Bézier curves, it has become customary to refer to the formula_1-vectors pformula_2 in a parametric representation formula_3 pformula_4 of a curve or surface in formula_1-space as control points, while the scalar-valued functions formula_6, defined over the relevant parameter domain, are the corresponding "weight" or "blending functions".