Texas Instruments TI-80 Support Question
Texas Instruments TI-80 Support Question
Find answers below for this question about Texas Instruments TI-80.Need a Texas Instruments TI-80 manual? We have 1 online manual for this item!
Question posted by levimeredith3 on August 10th, 2012
Contrast Settings
how do i change the contrast on my calculator
Current Answers
Related Texas Instruments TI-80 Manual Pages
User Manual - Page 3
... gives general instructions on the Graph 13
Other TI-80 Features 14
Chapter 1: Operating the TI-80
Turning the TI-80 On and Off Setting the Display Contrast The Display Entering Expressions and Instructions The Edit Keys Setting Modes TI-80 Modes Variable Names Storing and Recalling Variable Values Last Entry Last Answer TI-80 Menus The VARS and Y-VARS Menus EOS (Equation...
User Manual - Page 4
... Using the TI-80 Functions Keyboard Math Operations MATH MATH Operations MATH NUM (Number) Operations MATH PRB (Probability) Operations ANGLE Operations TEST (Relational) Operations
2-2 2-3 2-4 2-7 2-10 2-12 2-14 2-16
Chapter 3: Fractions
Getting Started: Working with Fractions 3-2 Setting Modes for Fraction Results 3-4 Entering and Using Fractions in Calculations ......... 3-6 The...
User Manual - Page 11
...the calculator using ¸.
Instructions are used throughout this guidebook.
An instruction, which may have arguments, initiates an action. A command is a complete sequence of the TI-80, where expressions can be entered and evaluated and instructions can be used in expressions. A function, which the value of TI-80 commands: instructions and expressions. A function is a set of...
User Manual - Page 13
...TI-80 Keyboard
2
First Steps
3
TI-80 Menus
4
Entering a Calculation: Compound Interest ...........
5
Continuing a Calculation
6
Defining a Function: Box with Lid
7
Defining a Table of these examples first. You will learn to use the TI.80...of the TI.80. Getting Started contains two keystroke-by completing both of Values
8
Zooming In on the Table
9
Changing the Viewing...
User Manual - Page 15
...the display.
2. The calculator is reset, and the ...calculator on this page to reset the TI-80 to select RESET from the MEMORY menu. Press 2 to its factory settings. (Resetting the TI-80 erases all previously entered data.) This ensures that following the keystrokes in this section produces the same actions.
1.
The MEMORY RESET menu is very dark or blank, adjust the display
E
contrast...
User Manual - Page 27
Chapter 1: Operating the TI-80
This chapter describes the TI.80 and provides general information about its operation. Chapter Contents
Turning the TI.80 On and Off Setting the Display Contrast The Display Entering Expressions and Instructions The Edit Keys Setting Modes TI.80 Modes Variable Names Storing and Recalling Variable Values Last Entry Last Answer TI.80 Menus The VARS and Y....
User Manual - Page 28
... and release 2, and then press ® to the same screen or editor in Appendix B.
1-2 Operating the TI-80 All settings and memory contents are retained by the Constant Memory feature. Note: APD does not occur if a calculation or program is cleared, and the display returns to a blank line on , press the ´ key. Turning...
User Manual - Page 29
... will gradually drop, and the display will dim. Operating the TI-80 1-3 Setting the Display Contrast
The brightness and contrast of the display depend on how to change batteries, the display contrast may become completely blank if you adjust the contrast setting too low.
Adjusting the Display Contrast
You can adjust the contrast to Appendix B for instructions on room lighting, battery...
User Manual - Page 30
... press 9 and 6 to scroll the answer so that the list is displayed, the TI-80 screen can view all lines of the next line.
Entry Answer
The mode settings (pages 1-9 through 1-11) control the way the calculator interprets expressions and displays answers. Home Screen
The primary screen of the next...
User Manual - Page 33
...in scientific notation does not cause the answers to stop the calculation. (There may be a delay.)
Operating the TI-80 1-7 An instruction initiates an action. LINE( requires four ...which is an instruction that precedes the exponent. Press 2 ^. í is indicated by the mode settings (pages 1-9 through 1-11) and the size of the name. The display format is in scientific notation...
User Manual - Page 34
... / or a cursor key. To cancel 2nd, press y again. The cursor changes to . Sets ALPHA-LOCK;
These keys repeat when you hold them down .
¦ On ...changes to the right above a key). To cancel ALPHA, press ? or a cursor key. Key(s) 9 or 6 7 or 8
2 6 2 9 ¸ M
4 y / y ? Moves the cursor to enter an X in FUNC mode or a T in an ALPHA character.
first.
1-8 Operating the TI-80...
User Manual - Page 35
... retained by the Constant Memory feature when the TI.80 is turned off. Unit of graphing. Type of angle measure. Whether to the cursor location. Press ¸.
Setting a Mode from a Program
You can set a mode from a program by the calculator. for example, FUNC or FLOAT. The name is on the following pages. Number of the...
User Manual - Page 36
... 10 digits or the absolute value is less than .001, the TI-80 displays the answer in 12345.67. The decimal settings apply to fixed decimal when the program is the way in which ... format is executed.
1-10 Operating the TI-80
Note: If you select the number of the decimal. You can enter a number in calculations. The displayed value is changed to both notation formats. The mode is...
User Manual - Page 60
... calculated on an element-by-element basis. A random number is stored to the cursor location. Random integer generator.
Note: When you select a menu item, the name is 0.
2-12 Math, Angle, and Test Operations MATH PRB (Probability) Operations
To display the MATH PRB menu, press I 6. When you reset the TI-80, RAND is set to...
User Manual - Page 65
Chapter Contents
Getting Started: Working with Fractions 3-2 Setting Modes for Fraction Results 3-4 Entering and Using Fractions in Calculations ......... 3-6 The FRACTION Menu 3-8
Fractions 3-1 Chapter 3: Fractions
This chapter describes how to use the fraction operations on the TI.80.
User Manual - Page 78
... in Chapter 5. The mode settings can set to place the cursor on the TI-80 are appropriate. Press 8 and 7 to FUNC. Checking and Changing Graphing Modes
Press 3 to display the MODE screen. The name of graphing on the mode that the mode settings are described in parametric graphing are highlighted.
The TI-80 has two graphing modes.
¦...
User Manual - Page 83
...TI-80 is the portion of the coordinate plane defined by all graphing modes.
Press 8 to move to the Window variable you may do any of the viewing window.
To turn off the tick marks, set XSCL=0 and YSCL=0. Changing a Window Variable Value
To change...the following: ¦ Position the cursor, and then make the changes.
¦ Press M to display the current Window variable values. ...
User Manual - Page 85
...on the Y= edit screen.
Note: CLRDRAW is graphed on the new values.
¦ Changed a mode setting that requires the functions to replot a graph. The second function is a fast way to ... on a Graph
The TI-80 lets you have changed that affects graphs. ¦ Changed a function in the current picture. ¦ Deselected a function in the current picture. ¦ Changed the value of the ...
User Manual - Page 90
... new viewing window, and then press ¸. The TI-80 adjusts the viewing window by pressing the appropriate key, such...
¦ Press 2 . Notice the different cursor.
After checking or changing XFACT and YFACT, select ZOOM IN from the ZOOM menu.
ZOOM IN...the Home screen.
4-16 Function Graphing The XFACT and YFACT settings determine the extent of the new viewing window, and then ...
User Manual - Page 96
... increment. XMIN=L10
Smallest X value to evaluate. YMAX=10
Largest Y value to be displayed. Selecting Parametric Equations
Setting Window Variables
The TI-80 graphs only the parametric equations you enter both components of the equations on both the X and Y components changes.
XSCL=1
Spacing between Y tick marks. YMIN=L10
Smallest Y value to be displayed.
To...
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