Question: Use a computer to graph the function using various domains and viewpoints. Get a printout of one that, in your opinion, gives a good view.
Use a computer to graph the function using various domains and viewpoints. Get 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.
f (x, y) = cos x cos y

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