Turn the calculator on by pressing
the ON button located in the lower left corner of the TI-92
calculator. The calculator has an automatically turn off feature
that will turn off the calculator if it is not used within a 10
minute time span.
To lighten the display, hold down
the diamond key (located to the
right of the ON button) and press the subtraction
key until the screen is visible.
To darken the display, hold down the diamond key and press the
The screen display should look like
the diagram below. This screen is called the Home Screen
and it is separated into four parts: Tool bar, History
Area, Entry Line, and Status Line.
The entry line is where expressions
or instructions are entered. To execute an entry,
press one of the three ENTER buttons.
After pressing ENTER, the expression
is evaluated and placed in
the History Area.
An expression/answer in the history
area can be viewed as pretty print or standard calculator
displays. The answers can be displayed as exact or approximate
solutions. An example of each type is shown below.
The history area shows
up to 8 previous entry/answer pairs in the window. When entering
an expression, the entry or expression is shown on the
left side of the screen and the answer or evaluation is
on the right.
When the display is filled, information
will scroll off the top of the screen. You can scroll through
the history area by pressing the cursor pad (up arrow),.
The default setting gives access
to 30 entry/answer pairs, some of which may have scrolled
off of the screen. The number of entry/answer pairs may be changes
to a maximum of 99. To change the default, press F1 then
To copy an entry or answer from the
history area and place it on status line, highlight the entry
and press any one of the ENTER keys.
Unlike most calculators, the TI-92
has a convenient tool bar or tab menu present at all times.
This tool bar will change depending on the Home Screen display.
To display the tool bar options, press the function keys
F1, F2, etc. You can also use the cursor pad (right
or left arrows) to change menus.
The tool bar will change depending on which application
or program you run. You can either scroll down to the
tool bar operation or press the appropriate number then ENTER.
Press the Escape Key (ESC)
to go back to the Home screen. The escape key can be utilized
to bring back a previous screen or undo and operation.
F1 ( )
If you press the F1 button, the F1
tab for the home screen opens.
The TI-92 calculator allows you basic
word processor type commands to control entries and answers on
the home screen. Most of these commands have shortcut keys.
The F1 operation that you will probably use the most is 8:
Clear Home. This command will clear the history area.
Although the tool bar will change depending on a specific application, the F1 tab remains more or less same no matter which application you run. The only exception to this is when you run a program. Programs may define other operation for the tabs.
Instead of entering an algebra function with the QWERTY keyboard,
the F2 (Algebra) tab can be used as a shortcut. By selecting
a number, the function and half of the parentheses are entered
on the entry line. We will examine some these functions later.
The tab F3 shows common calculus functions.
The tab F4 shows other useful functions and operations.
The tab screen F5 (Pgrm IO) can be opened by pressing the
function key F5. This window shows the input and output
of programs. Leftover data from programs may be viewed from this
screen. This is a separate screen from the home screen. Unless
you are running a program, you do not have access to this option.
You may clear this screen by pressing F4(Other) then 6:
ClrIO then ENTER.
F6 (Clear a-z)
This tab window will clear all one character variables.
The status line shows the current
state of the calculator. It will change to indicate a mode change
or folder change.
The MAIN indicates the current
The RAD shows the angle mode
The AUTO indicates the exact/approximate
mode is set on automatic.
The 9/30 is the history indicator
which shows information about entry/answer pairs. The first number
9 represents the total number of pairs that are currently saved
and the 30 indicates the maximum number of pairs that can be saved.
The 3D indicates that the
graphing mode is set for three dimensions.
Calculator Buttons, Windows
Modes can be changed by pressing
the MODE key (located to the left of the ESC key),
and using the cursor pad (down arrow) to select
an option from the open window.
After highlighting, press the right
arrow to view options.
To change a mode, highlight the option
and press ENTER. If you press ENTER again, you will return to
the home screen.
The TI-92 calculator has a number
of functions available though the use of the green diamond
and the second function keys. Some of
these functions are listed on the calculator as direct or second
function keys and some are hidden with shortcut keys.
The TI-92 characters can be viewed
by pressing the 2nd key then 2 (CHAR).
Pressing the diamond key then
K will display the keyboard map for the TI-92 calculator.
To obtain these characters, press
the 2nd key then the corresponding letter. For example
to display the degree symbol º, press 2nd then
Pressing the 2nd key and
5 (MATH) will open a list of math functions.
Pressing the 2nd key and
2 (CATALOG) will open a list all functions.
You can use the scroll pad(up or
down) to navigate through the list or press a letter.
A program can be written to change
the tab keys on the home screen. Pressing the 2nd key
and 3 (CUSTOM) will switch tool bars. On my calculator
the custom tool bar switches to the screen below.
If you press the 2nd key
then 6 (MEM), a memory window opens. This window shows
the variable stored in the calculator memory.
Pressing the 2nd key then
the subtraction key (VAR-LINK), allows another view of
the variable stored in memory.
This window gives you the ability
to mange all variable in the TI-92.
The APPS key is uses when
you want to change applications.
Some of the more common applications
are also available by using the diamond key and pressing
Q, W, E, R, T or Y on the keyboard.