3. Some pictures of visualization of a numerical method for determining the type of local extrema of functions with two variables on a contour map without using derivatives
Here are explanatory images from the applet: Visualization of a numerical method for determining the type of extrema of functions with two variables on a contour map without using derivatives. Further refinement of the applet for exploring contour maps. The presented applet visualizes both the contour map created by moving point and the corresponding three-dimensional graph. 8 functions are provided as examples.
