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Stationary Points

Stationary Points

thingiverse

A surface demonstrating 4 stationary points using 4 lines - 2 saddle points, a maximum and a minimum. The function plotter used for this design came from https://openhome.cc/eGossip/OpenSCAD/FunctionGrapher.html and it is very good! This design also features a smaller saddle point that shows clearly the increasing gradient in one direction and decreasing in the perpendicular direction.

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