HP 49g+ User Manual page 381

Graphing calculator

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X 'EXP(-X^2/2)/ √(2*π)' >>.

Press ƒ, twice, to drop the contents of the stack.

Enter the PLOT WINDOW environment by entering „ò (press

them simultaneously if in RPN mode).

VIEW, then press @AUTO to generate the V-VIEW automatically.

PLOT WINDOW screen looks as follows:

Plot the graph: @ERASE @DRAW (wait till the calculator finishes the

@EDIT L @LABEL @MENU

To see labels:

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 = 0.231.

Here is picture of the graph in tracing mode:

To recover the menu, and return to the PLOT WINDOW environment,

press L@CANCL, then L@@OK@@.

Use a range of –4 to 4 for H-

Also, check that for x = -1.48 , y = 0.134.