Texas Instruments TITANIUM TI-89 User Manual
Page 441

Differential Equation Graphing
441
Ê
Important:
Change
tstep
from .1 (its default) to 1. Otherwise,
BldData
calculates too
many rows for the data variable and a Dimension error occurs.
Ê
t0=0.
tmax=100.
tstep=1.
tplot=0.
xmin=
L
1.
xmax=100.
xscl=1.
ymin=
L
10.
ymax=10
yscl=1.
ncurves=0.
diftol=.001
7. In the Home screen
@
"
"
use
BldData
to create a data variable
containing the
RK
graphing points.
8. Return to the Y= Editor, press:
,
9
— or —
@
8 Í
Set
Solution Method = EULER
.
Note:
You do not need to graph the
equation before using
BldData
. For more
information about
BldData
, refer to the
Technical Reference module.
9. Return to the Home screen, and use
BldData
to create a data variable
containing the
Euler
graphing points.
BldData rklog
BldData eulerlog