![](/images/new-backgrounds/1315973/315973265x1.webp)
•When done, press @EXIT.
•Press @CANCL to return to the PLOT WINDOW environment.
• Change the Step data to read: Step Indep: 20 Depnd: 16
•Press @ERASE @DRAW to see the surface plot. Sample views:
•When done, press @EXIT.
•Press @CANCL to return to PLOT WINDOW.
•Press $, or L@@@OK@@@, to return to normal calculator display. Try also a Fast 3D plot for the surface z = f(x,y) = sin (x2+y2)
•Press „ô, simultaneously if in RPN mode, to access the PLOT SETUP window.
•Press ˜and type ‘SIN(X^2+Y^2)’ @@@OK@@@.
• Press @ERASE @DRAW to draw the slope field plot. Press @EXIT @EDIT L @)LABEL @MENU to see the plot unencumbered by the menu and with identifying labels.
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