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• Press ` to return to the PLOT - FUNCTION window. The expression
'Y1(X) = EXP(-X^2/2)/ (2* )' will be highlighted. Press L@@@OK@@@ to
return to normal calculator display.
• Enter the PLOT WINDOW environment by entering „ò (press
them simultaneously if in RPN mode). Use a range of –4 to 4 for H-
VIEW, then press @AUTO to generate the V-VIEW automatically. The PLOT
WINDOW screen looks as follows:
• Plot the graph: @ERASE @DRAW (wait till the calculator finishes the graphs)
• To see labels: @EDIT L @LABEL @MENU
• To recover the first graphics menu: LL@) P ICT
• To trace the curve: @TRACE @@X,Y@@ . Then use the right- and left-arrow keys
( š™ ) to move about the curve. The coordinates of the points you
trace will be shown at the bottom of the screen. Check that for x =
1.05 , y = 0.0231. Also, check that for x = -1.48 , y = 0.134. Here is
picture of the graph in tracing mode:
• To recover the menu, and return to the PLOT WINDOW environment,
press L@CANCL . Press L@@OK@@ to return to normal display.
Page 10-3


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F2229aa - 50g graphing calculator

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