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Exercise 1 Transform the function x2 -y2 from cartesian to polar coordinates and use the Display Polar option to produce a raster map of this function on the unit circle.

Exercise 2 Use the palette editing tool in X Image to construct a palette similar to new.pal of Code 2.

Exercise 3 Use X Image to displays a color raster map of the following function on the square -5 < x,y < 5 for t = 1.1

Exercise 4 Use the Display Data Set option to locate a data value of 1.0.

Exercise 5 Using a code similar to newpal.f, produce a gray scale palette for display of the data set of Exercise 3. Hint R=G=B.

Exercise 6 Using a code similar to newpal.f produce a striped palette (one with say 10 equally spaced black lines) for display of the data set of Exercise 3.