Visualization of a numerical method for determining the type of extrema of functions with two variables on a contour map without using derivatives. 3.0
f(x, y) = 3ℯ-(y + 1)² - x² (x - 1)² - ℯ-(x + 1)² - 8² / 3 + ℯ-x² - y² (10x³ - 2x + 10y⁵)
*Detailed instructions and explanations for this applet can be found in the previous applets 1, 2 and 3. 