HP 48GII, Руководство пользователя, Страница: 545 / 864

Page 16-67
Notice that the option V-Var: is set to 1, indicating that the first element in the
vector solution, namely, x’, is to be plotted against the independent variable t.
Accept changes to PLOT SETUP by pressing
L @@OK@@
.
Press
„ò
(simultaneously, if in RPN mode) to enter the PLOT WINDOW
environment. Modify this input form to look like this:
To plot the x’ vs. t graph use:
@ERASE @DRAW
. The plot of x’ vs. t looks like this:
To plot the second curve we need to use the PLOT SETUP input form once,
more. To reach this form from the graph above use:
@CANCL
L @@OK@@ „ô
(simultaneously, if in RPN mode) . Change the value of the
V-Var: field to 2, and press
@DRAW
(do not press
@ERASE
or you would loose the
graph produced above). Use:
@EDIT L @LABEL @MENU
to see axes labels and
range. Notice that the x axis label is the number 0 (indicating the
independent variable), while the y-axis label is the number 2 (indicating the
second variable, i.e., the last variable plotted). The combined graph looks
like this:
Press
LL @PICT @CANCL $
to return to normal calculator display.