Storing Values; Error Messages - Texas Instruments TI-82 Manual

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1
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Calculate
4 15 *
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If you wish to clear the home screen, press
3. ANSWER DISPLAY
your calculator can provide the answer in fraction form. When an answer is very large or very
small, the calculator displays the result in scientific notation.
The Òto a fractionÓ key is obtained by pressing
( )
MATH 1 Frac
‹
The calculator's symbol for Òtimes 10
È
12 means 7,945,000,000,000.
7.945
The result 1.4675
notation expression for 0.0000014675.

4. STORING VALUES

recall. To store a number, type the number on the display and press
in which you wish to store the value, and then press
together, use
2nd
Store 5 in A and 3 in B, and then calculate 4 A Ð 2B.
To recall a value stored in a variable, use
letter in which the expression or value is stored and then press
. The value stays stored until you change it.
ENTER

5. ERROR MESSAGES

If you have more than one command on a line without the
commands separated by a colon (:), an error message results
when you press
ENTER
TI-82 Choose
1
the error occurred so that you can correct the mistake or
choose ( ) to begin a new line on the home screen.
2 Quit
Copyright © Houghton Mifflin Company. All rights reserved.
-
ö
1
÷
using this nice shortcut.
895
+
ø
7
When the denominator of a fraction has no more than three digits,
.
12
Ó is
–6
È
6 means 1.4675 * 10
–
Sometimes it is beneficial to store numbers or expressions for later
( ).
:
When your input is incorrect, an error message is displayed.
.
( ) to position the cursor to the place
Goto
.
CLEAR
È
12. Thus,
, the scientific
. To join several short commands
ENTER
to type the
ALPHA
Chapter 1
, type the letter
STO ALPHA
‹
A-3