Learning Guide Learning Guide

4.1 Graphing in Two Dimensions • 1091.41.21y0.80.60.40.2–0.2 0–0.45 10 15 20 25xYou can also change the line style by using the standard menus andthe context-sensitive menus. Similarly, specify the colors of the graphs byusing the color option. (You can see the effect with a color display but,in this book, the lines appear in two different shades of grey.)> plot( [ [f(x), D(f)(x), x=-2..2],> [D(f)(x), (D@@2)(f)(x), x=-2..2] ],> color=[gold, plum] );432101 2 3 4 5–1For more details on colors, refer to ?plot,color.Plotting Data PointsTo plot numeric data, call pointplot with the data in a list of lists of theform[[x 1 , y 1 ], [x 2 , y 2 ], . . . , [x n , y n ]].If the list is long, assign it to a name.> data_list:=[[-2,4],[-1,1],[0, 0],[1,1],[2,4],[3,9],[4,16]];data_list :=[[−2, 4], [−1, 1], [0, 0], [1, 1], [2, 4], [3, 9], [4, 16]]