   Chapter 14.1, Problem 60E

Chapter
Section
Textbook Problem

Use a computer to graph the function using various domains and viewpoints. Gel a printout of one that, in your opinion, gives a good view. If your software also produces level curves, then plot some contour lines of the same function and compare with the graph.60. f(x, y) = cos x cos y

To determine

To sketch: The graph and the contour map of the function f(x,y)=cosxcosy and compare them.

Explanation

The function is, f(x,y)=cosxcosy .

Use online calculator and obtain the graph of the function f(x,y) as shown below in Figure 1.

Use online calculator and obtain the contour map of the function f(x,y) as shown below in Figure 2.

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