Interoperable interactive geometry for Europe
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This platform is brought to you by the intergeo project, funded under the eContent Plus programme of the European commission and by partners


line(l) states that l is a line and provides its homogeneous coordinates.

The coordinates can be complex numbers. For example, the line defined by the equation 3x+5y=3 is line(homogeneous_coordinates(3,5,-3))


  1. line example: source JSXGraph
  2. parabola defined as locus example: source JSXGraph