TI-83, TI-83 Plus, TI-84 Plus Guide
Basic Operation
You should be familiar with the basic operation of your calculator. With your calculator in hand,
go through each of the following.
1. CALCULATING You can type in lengthy expressions; just be certain that you use
parentheses to control the calculator's order of operations. Always enclose in
parentheses any numerator, denominator, quantity to be raised to a power, or
exponent that consists of more than one symbol.
Evaluate
1
415
895
7
* +
. Enclose the denominator in
parentheses. It is not necessary to use parentheses around
the fraction
895/7 because there is only one symbol in the
numerator and one symbol in the denominator..
Evaluate
(3)
.
4
−
−
+
5
81456
. Use (−) for the negative symbol and −
for the subtraction sign. To clear the home screen, press
CLEAR
.
NOTE: The numerator, denominator, and quantity to be raised to the 4
th
power
must be enclosed in parentheses.
Now, evaluate e
3
*
2 ≈ 40.17. The calculator prints the left
parenthesis when you press
2ND LN (e
x
). The calculator
assumes that you are inserting a right parenthesis at the end of
what you type unless you insert one elsewhere.
2. USING THE ANS MEMORY Instead of again typing an expression that was just
evaluated, use the answer memory by pressing
2ND (−) (ANS).
Calculate
1
415
895
7
1
* +
F
H
G
G
I
K
J
J
−
using this nice shortcut.
Type
Ans
-1
by pressing 2ND (−) (ANS) x
−1
.
3. ANSWER DISPLAY When the denominator of a fraction has no more than three
digits, your calculator can provide the answer in the form of a fraction. When an
answer is very large or very small, the calculator displays the result in scientific
notation.
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