Texas Instruments TI-89 Titanium User Manual

Differential Equation Graphing 427
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=
L1.
xmax=100.
xscl=1.
ymin=
L10.
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 —
@8Í
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

Texas Instruments TI-89 Titanium Specifications

General

Display Type	LCD
Display Resolution	160 x 100 pixels
CPU	Motorola 68000
CPU Speed	16 MHz
RAM	256 KB
Flash ROM	2.7 MB
Programming Language	TI-BASIC, Assembly
Power Source	4 AAA batteries
Connectivity	I/O port
Dimensions	7.5 x 3.5 x 1 inches