Texas Instruments TI-89 Titanium User Manual

Differential Equation Graphing 433
You can also use deSolve( ) to solve this problem directly. Enter:
deSolve(y' = 1/1000 yù(100Ny) and y(0)=10,t,y)
Troubleshooting with the Fields Graph Format
If you have difficulties graphing a differential equation, this section can help you correct
the problem. Many problems may be related to your Fields graph format setting.
Setting the Fields Graph Format
What Order Equation Are You Graphing?
4. Evaluate the general solution (
y) with the
constant
@1=9/100 to obtain the particular
solution shown.
From the Y= Editor, Window Editor, or Graph
screen, press:
,
9
— or —
@8Í
If the equation is: Valid Fields settings are:
1st-order SLPFLD or FLDOFF

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