HP 50g HP 50g_user's manual_English_HDPSG49AEM8.pdf - Page 128

Y1x = Exp-x^2/2, Erase, Label, Trace, Cancl

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Page 128 highlights

• Press ` to return to the PLOT - FUNCTION window. The expression 'Y1(X) = EXP(-X^2/2)/√(2*π)' 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 HVIEW, 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@)PICT • 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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Page 10-3
•
Press
`
to return to the PLOT - FUNCTION window.
The expression
‘Y1(X) = EXP(-X^2/2)/
√
(2*
π
)’ 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
@
)
PICT
•
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.