Texas Instruments BA-20 Profit Manager User Manual - Page 12

Math Operations, Examples of Math Operations - sale

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Math Operations When you select the chain (Chn) calculation method, the calculator evaluates mathematical expressions (for example, 3 + 2 Q 4) in the order that you enter them. Examples of Math Operations These operations require you to press N to complete. To Press Display Add 6 + 4 6 H 4 N 10.00 Subtract 6 N 4 6 B 4 N 2.00 Multiply 6 Q 4 6 < 4 N 24.00 Divide 6 P 4 6 6 4 N 1.50 1.25 Find universal power: 3 3 ; 1.25 N 3.95 Use parentheses: 7 Q (3 + 5) 7 Display 39.69 3.94 0.31 120.00 5.32 8 Overview of Calculator Operations

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8
Overview of Calculator Operations
Math Operations
When you select the chain (
Chn
) calculation method, the calculator
evaluates mathematical expressions (for example, 3 + 2
Q
4) in the order
that you enter them.
Examples of Math Operations
These operations require you to press
N
to complete.
These operations do not require you to press
N
to complete.
To
Press
Display
Add 6 + 4
6
H
4
N
10.00
Subtract 6
N
4
6
B
4
N
2.00
Multiply 6
Q
4
6
<
4
N
24.00
Divide 6
P
4
6
6
4
N
1.50
Find universal power:
3
1.25
3
;
1.25
N
3.95
Use parentheses: 7
Q
(3 + 5)
7
< 9
3
H
5
: N
56.00
Find percent: 4% of $453
453
<
4
2 N
18.12
Find percent ratio: 14 to 25
14
6
25
2 N
56.00
Find price with percent add-on:
$498 + 7% sales tax
498
H
7
2
N
34.86
532.86
Find price with percent discount:
$69.99
N
10%
69.99
B
10
2
N
7.00
62.99
Find number of combinations where:
n = 52, r = 5
52
& s
5
N
2,598,960.00
Find number of permutations where:
n = 8, r = 3
8
& m
3
N
336.00
To
Press
Display
Square 6.3
2
6.3
4
39.69
Find square root:
15.5
3
3.94
Find reciprocal: 1/3.2
3.2
5
0.31
Find factorial: 5!
5
& g
120.00
Find natural logarithm: ln 203.45
203.45
>
5.32
15.5