Texas Instruments TI-84 Plus Guide

TI-83, TI-83 Plus, TI-84 Plus Guide
tute a value for k in the differential equation before using program
EULER. It is always better
to store the exact value for a constant instead of using a rounded value.
Enter
dy
dx
= 5.9x – 3.2y in Y1. Run
program
EULER. We choose to use
10 steps over an interval of length 2;
hence, the step size is 0.2. The initial
condition is y(10) = 50.
The first estimate for a point on the
solution is y = 29.8 when x = 10.2.
Continue until 10 steps are completed;
that is, until the input is 12.
The estimate of y(12) is 21.55. Press ENTER to draw a graph
of the Euler estimates.
(Note that we cannot graph the differential equation on the
calculator we do when there is only one input variable.)
Copyright © Houghton Mifflin Company. All rights reserved.
95

Texas Instruments TI-84 Plus Specifications

General

Battery type	AAA
Power source	Battery
Number of batteries supported	4
Type	Graphing
Cover	No
Form factor	Pocket
Control type	Buttons
Product color	Black
USB port	Yes
USB 2.0 ports quantity	1
Digits	- digits
Display number of lines	8 lines
Display number of characters	16
RAM capacity	0.024 MB
ROM capacity	0.480 MB
Storage media type	-