Texas-instruments PLUS TI-89 User Manual download pdf (Page 409)

100

101

392 Chapter 23: Activities

23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM Page 392 of 26

Perform the following steps to write a script using the Text Editor,

test each line, and observe the results in the history area on the

Home screen.

1. Open the Text Editor, and

create a new variable named

demo1

2. Type the following lines into the Text Editor.

: Compute the maximum value of f on the closed interval [a,b]

: assume that f is differentiable on [a,b]

C : define f(x)=x^3

2x^2+x

C: 1

a:3.22

(f(x),x)

df(x)

C : zeros(df(x),x)

C : f(ans(1))

C : f({a,b})

: The largest number from the previous two commands is the maximum

value of the function. The smallest number is the minimum value.

3. Press

…

and select

1:Script view

to show the Text Editor and the

Home screen on a split-screen. Move the cursor to the first line in

the Text Editor.

Running a Tutorial Script Using the Text Editor

This activity shows you how to use the Text Editor to run a

tutorial script. Detailed information about text operations can

be found in Chapter 18: Text Editor.

Running a Tutorial

Script

Note:

The command symbo

“C”

is accessed from the

„

1:Command

toolbar

menu.

1 2 ... 404 405 406 407 408 409 410 411 412 413 414 ... 622 623

Comments to this Manuals

No comments

Texas-instruments PLUS TI-89 User Manual Page 409

Comments to this Manuals

Related products and manuals for Calculators, organizers Texas-instruments PLUS TI-89