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Chapter 1: Getting Started with the TI-84 Plus C Silver Edition 21
Pictures and Backgrounds
The TI-84 Plus C uses both pictures and background images. They are both stored in Flash archive, but
they are used in different ways:
Image Vars (Image1 - Image9, and Image0) are variables stored in archive memory. An Image Var is
used as a Background Image in the graph area. Several images are pre-loaded on the TI-84 Plus C.
You can also convert images to TI-84 Plus C Image Vars in the TI Connect™ software and load them
to the calculator. You cannot create images on the calculator.
Note: TI Connect™ software is available as a free download from education.ti.com/go/download.
Pic Vars (Pic1 - Pic 9, and Pic0) are also variables stored in archive memory. Pic Vars can be created
by drawing in the graphing area, and the changes saved and recalled to the graphing area. Saving
a Pic Var will not include the Background Image behind your graphing area.
Both Image Vars and Pic Vars are stored and run in Flash archive, not in RAM. They are both
accessible in the VARS menu.
Image Vars and Pic Vars can only be shared with another TI-84 Plus C graphing calculator.
TI-84 Plus Pic Vars cannot be shared between the TI-84 Plus and the TI-84 Plus C graphing
calculators.
If you perform a RAM reset on the TI-84 Plus C, the Image Vars and Pic Vars remain in Archive
memory for use.
TI-84 Plus pictures are stored in RAM or archive, while TI-84 Plus C pictures are stored only in
archive.
Using Variable Names
Variables and Defined Items
You can enter and use several types of data, including real and complex numbers, matrices, lists,
functions, stat plots, graph databases, graph pictures, and strings.
The TI-84 Plus C uses assigned names for variables and other items saved in memory. For lists, you also
can create your own five-character names.
Pastes an X in
Func mode, a T in Par mode, a q in Pol
mode, or an n in Seq mode with one keystroke.
Variable Type Names
Real numbers (including
fractions)
A, B, ... , Z, q
Complex numbers
A, B, ... , Z, q
Matrices ã
Aä, ãBä, ãCä, ... , ãJä
Lists
L1, L2, L3, L4, L5, L6, and user-defined
names
Functions
Y1, Y2, ... , Y9, Y0
Parametric equations X1T and Y1T, ... , X6T and Y6T
Polar functions r1, r2, r3, r4, r5, r6
Sequence functions u, v, w
Stat plots
Plot1, Plot2, Plot3
Graph databases GDB1, GDB2, ... , GDB9, GDB0
Keystrokes Result
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