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Chapter 16: Programming 277
Creating and Deleting Programs
What Is a Program?
A program is a set of one or more command lines. Each line contains one or more instructions. When
you execute a program, the TI-84 Plus C performs each instruction on each command line in the same
order in which you entered them. The number and size of programs that the TI-84 Plus C can store is
limited only by available memory.
Operating Systems Versions and Programming
Programs created using the TI-84 Plus OS 2.55MP and earlier or the TI-83 Plus 1.19 OS or earlier will
run on the TI-84 Plus C; however, they may result in unexpected displays on the TI-84 Plus C given
the high resolution screen. You should test your existing programs on the TI-84 Plus C and adjust
command arguments as needed. In particular, any commands that display on the graph need to
have the arguments adjusted to the desired pixel locations on the graph area. Programs displaying
to the Home Screen should run as expected.
Programs can run in Classic or MathPrint™ mode.
Shortcut menus are available wherever the MATH menu can be accessed.
MathPrint™ templates are not available for programs. All input and output is in Classic format.
You can use fractions in programs, but you should test the program to make sure that you get the
desired results.
The spacing of the display may be slightly different in MathPrint™ mode than in Classic mode. If
you prefer the spacing in Classic mode, set the mode using a command in your program. Screen
shots for the examples in this chapter were taken in Classic mode.
Syntax help is built in on the TI-84 Plus C. When in program edit mode, press
Note: Press à (plus) to run the catalog help application and to use syntax help for programming.
Creating a New Program
To create a new program, follow these steps.
1. Press | to display the
PRGM NEW menu.
2. Press Í to select
1:Create New. The Name= prompt is displayed, and alpha-lock is on.
3. Press a letter from A to Z or q to enter the first character of the new program name.
Note: A program name can be one to eight characters long. The first character must be a letter
from A to Z or q. The second through eighth characters can be letters, numbers, or q.
4. Enter zero to seven letters, numbers, or q to complete the new program name.
8. Press Í to paste prgmCYLINDER to the current
cursor location. (If
CYLINDER is not item 1 on your
PRGM EXEC menu, move the cursor to CYLINDER
before you press Í.)
9. Press Í to execute the program. Enter
1.5 for the
radius, and then press Í. Enter
3 for the height,
and then press Í. The text VOLUME IS, the value
of V, and Done are displayed.
Repeat steps 7 through 9 and enter different values
for
R and H.
284

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