HP (Hewlett-Packard) 50g ユーザーズマニュアル

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Θ Press @EDIT!L @LABEL   @MENU to see the graph with labels and ranges. 
Θ Press LL@)PICT@CANCL to return to the PLOT WINDOW environment.  
Θ Press  $ , or L@@@OK@@@, to return to normal calculator display.
Try also a Ps-Contour plot for the surface z = f(x,y) = sin x cos y.
Θ Press  „ô, simultaneously if in RPN mode, to access the PLOT SETUP
window.  
Θ Press  ˜  and type ‘SIN(X)*COS(Y)’ @@@OK@@@.
Θ Press @ERASE  @DRAW to draw the slope field plot.   Press @EDIT L@)LABEL  @MENU to
see the plot unencumbered by the menu and with identifying labels.  
Θ Press LL@)PICT to leave the EDIT environment.
Θ Press  @CANCL to return to the PLOT WINDOW environment.  Then, press
$ , or L@@@OK@@@, to return to normal calculator display.
Y-Slice plots
Y-Slice plots are animated plots of z-vs.-y for different values of x from the
function z = f(x,y).   For example, to produce a Y-Slice plot for the surface z =
x
3
-xy
3
, use the following:
Θ Press  „ô, simultaneously if in RPN mode, to access to the PLOT
SETUP window.  
Θ Change 
TYPE
 to 
Y-Slice.
Θ Press  ˜  and type ‘X^3+X*Y^3’ @@@OK@@@.