Texas Instruments TI-84 Plus Guide Book

Chapter 15: CATALOG, Strings, Hyperbolic Functions 421
sub(
sub(sub(
sub(
sub( returns a string that is a subset of an existing string. string can be a string or a string
variable.
begin is the position number of the first character of the subset. length is the
number of characters in the subset.
sub(string,begin,length)
Entering a Function to Graph during Program Execution
Entering a Function to Graph during Program ExecutionEntering a Function to Graph during Program Execution
Entering a Function to Graph during Program Execution
In a program, you can enter a function to graph during program execution using these
commands.

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	-