Drawing the curvature diagram of a curve

Start the Curve Curvature command and proceed as described below. Please note that you can accomplish this task by loading file "to0117.e3e2".

1	Select the curve you want to examine.
2	Indicate two opposite corners of the rectangular window in which you want the graph to appear. The program immediately creates the graph of the curvature of the curve as a function of its parameter. The highest and lowest values are shown and an arrow is displayed on the curve to indicate the direction in which the parameter increases.
3	If you want to analyze the curvature at a point on the graph, click on it. The program displays the values of the parameter, curvature, and radius of curvature at the indicated point. To repeat the analysis at another point, right-click on Point on diagram, select reset and specify another point on the diagram.