Texas Instruments PLUS TI-89 User Manual
Page 27
10 Chapter 1: Getting Started
01START.DOC TI-89/TI-92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 10 of 12
01START DOC TI-89/TI-92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 10 of 12
Steps
³
TI
.
89
Keystrokes
›
TI
.
92 Plus
Keystrokes
Display
Solving Equations with a Domain
Constraint
1. Solve the equation
x
2
ì
2x
ì
6=2
with respect to
x
where
x
is
greater than zero.
The “with” (I) operator provides
domain constraint.
TI
.
89:
Í
TI
.
92 Plus:
2
Í
„ 1
X Z 2 | 2 X | 6
Á 2 b X d
Í X
2 Ã 0
¸
„ 1
X Z 2 | 2 X | 6
Á 2 b X d
2 Í X
2 Ã 0
¸
Finding the Derivative of
Functions
1. Find the derivative of
(x
ì
y)
3
/(x+y)
2
with respect to
x
.
This example illustrates using the
calculus differentiation function and
how the function is displayed in
“pretty print” in the history area.
2 = c X | Y
d Z 3 e c X «
Y d Z 2 b X d
¸
2 = c X | Y
d Z 3 e c X «
Y d Z 2 b X d
¸
Finding the Integral of
Functions
1. Find the integral of
x
ù
sin(x)
with
respect to
x
.
This example illustrates using the
calculus integration function.
2 < X p
2 W X d b
X d ¸
2 < X p
W X d b
X d ¸