(a) Let f(x, y) = x2 + y2. Estimate fx(2, 1) and fy(2, 1) using the contour diagram for f in Figure 8.44. (b) Estimate fx(2, 1) and fy(2, 1) from a table of values for f with x = 1.9, 2, 2.1 and y = 0.9, 1, 1.1. (c) Compare your estimates in parts (a) and (b) with the exact values of fx(2, 1) and fy(2, 1) found algebraically.

Introduction to Java What is Java: Java allows you to play online games, chat with people around the world, calculate your mortgage interest and view images in 3D. It’s also integral to the intranet applications and other e0business solutions that are the foundation of corporate computing. Java creates applications not to get confused with JavaScript, which only works, in...