CURVE /VARIABLE
Keywords: greg

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CURVE /VARIABLE

              [GREG1\]CURVE /VARIABLE V [Array_V]

        Selects the the interpolation variable V, which may be
          - X                   To plot a function Y=F(X) (Default)
          - Y                   To plot a function X=F(Y)
          - Z [Array_V]         To plot a curve with an explicit parametrization
            using the Z array, or the array Array_V if this second  argument  is
            present.
          - POLYGONAL_LENGTH    To  plot  a  curve using the polygonal length of
            the curve as parametrization. It is fast and of general use.
          - CURVILINEAR_LENGTH  Refined and slow version of the  parametrization
            in POLYGONAL_LENGTH.
          - NUMBERING           The parameter is the numbering of points.  It is
            only appropriate if the numbering reflects a reasonable parametriza-
            tion of the curve.