I'm new to MathCAD and would like to use it for homework in a CE structural engineering course I am taking. I have thus far been unable to find a means to draw simple diagrams or sketches in MathCAD to supplement the calculations and text. A search found reference to SmartSketch LE from Intergraph, but communication with them indicates that this software is no longer sold. The full SmartSketch package costs ~$1500, which is out of my reach.
Is there a less expensive means to create or import diagrams into MathCAD? I'm looking to do simple things like cross sections for moment of inertia calculations, free-body diagrams, etc.