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This is a curve solution program that does not use coordinates.
It will solve for Simple Curves, Spiral-Curve-Spiral combinations,
Connecting (or Transition) Spirals, and can fit a simple curve through
a point in the curve. All types of solutions can give all relevant curve
data and deflection/chord info for points along the arc/spiral. Curves can
be either arc or chord definition.
Also included are a Triangle solution program (TRIANGLE 2.0) and
a Vertical Curve solution program (New version: VCURVE 3.0).