Chapter 15: CATALOG, Strings, Hyperbolic Functions
267
Note:
•
From the top of the
CATALOG
menu, press
}
to move to the bottom. From the bottom, press
†
to move to the top.
•
When your TI-84 Plus is in MathPrint™ mode, many functions will paste the MathPrint™
template on the home screen. For example,
abs(
pastes the absolute value template on the
home screen instead of
abs(
.
Entering and Using Strings
What Is a String?
A string is a sequence of characters that you enclose within quotation marks. On the TI-84 Plus, a
string has two primary applications.
•
It defines text to be displayed in a program.
•
It accepts input from the keyboard in a program.
Characters are the units that you combine to form a string.
•
Each number, letter, and space counts as one character.
•
Each instruction or function name, such as
sin(
or
cos(
, counts as one character; the TI-84
Plus interprets each instruction or function name as one character.
Entering a String
To enter a string on a blank line on the home screen or in a program, follow these steps.
1. Press
ƒ
[
ã
]
to indicate the beginning of the string.
2. Enter the characters that comprise the string.
•
Use any combination of numbers, letters, function names, or instruction names to create
the string.
•
To enter a blank space, press
ƒ
O
.
•
To enter several alpha characters in a row, press
y
7
to activate alpha-lock.
3. Press
ƒ
[
ã
]
to indicate the end of the string.
ã
string
ã
4. Press
Í
. On the home screen, the string is displayed on the next line without quotations. An
ellipsis (
...
) indicates that the string continues beyond the screen. To scroll to see the entire string,
press
~
and
|
.
MathPrint™
Classic