Texas Instruments TI-85 User Manual
Page 3
Chapter 1
B-3
Copyright © Houghton Mifflin Company. All rights reserved.
Calculate
1
4*15
+ 895
7
ж
и
з
з
ц
ш
ч
ч
-1
using this nice shortcut.
(If you wish to clear the home screen, press
CLEAR
.)
3. ANSWER DISPLAY
When the denominator of a fraction has no more than three digits,
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
2nd
✕ (
MATH
)
F5
(
MISC
)
MORE
F1
(
‹
Frac
) .
The calculator's symbol for Òtimes 10
12
Ó is
È
12.
Thus,
7.945
È
12
means 7,945,000,000,000.
The result
1.4675
È
–
6
means
1.4675*10
–6
, the scientific
notation expression for 0.0000014675.
4. STORING VALUES
Sometimes it is beneficial to store numbers or expressions for later
recall. To store a number, type the number on the display and press
STO
‹
. (Note that t h e
cursor automatically changes to alphabetic mode when you press
STO
‹
.) Next, press the key
corresponding to the letter in which you wish to store the value, and then press
ENTER
. To join
several short commands 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
ALPHA
to type the letter in which the expression or value
is stored and then press
ENTER
. The value stays
stored until you change it.
5. ERROR MESSAGES
When your input is incorrect, an error message is displayed.
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
.