Texas Instruments TI-30XIIB Owners Manual - Page 29

Reciprocal, Percent, number, sales

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Reciprocal The reciprocal key Pri divides the display value x into 1.x y0. Example: 312 = 0.3125 Enter 3.2 Press LW Display 0.3125 Example: _ - .58129595 -1 +1V 7.4 Enter 1 7.4 Press [±01:3 [2]. [fE] F-7.1 IVX-1 Display -1. 1.7202941 .58129595 Comments Enter -1 -1 + Vcri Answer Percent The percent key converts the displayed number from a percentage to a decimal. Example* 43 9% - .439 Enter Press Display 43.9 f 0 439 When I scl is pressed after an arithmetic operation, add on. discount, and percentage can be computed as follows. r+1- f ]Q n adds n% to tne number displayed. Example. What is the total cost of a $15 item when there is a 5% sales tax? Enter IS S Press En LT11,1 C7 Display 15 15 75 n [x][-] subtracts n% from the number displayed. 27

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Reciprocal
The
reciprocal
key
Pri
divides
the
display
value
x
into
1.x
y0.
Example:
3
1
2
=
0.3125
Enter
Press
Display
3.2
LW
0.3125
Example:
-1
+1
7.4
_
-
.58129595
V
Enter
Press
Display
Comments
1
[±01
:
3
[2].
-1.
Enter
-1
7.4
[fE]
F-.
7
1
1.7202941
-1
+
V
c
ri
IVX
-
1
.58129595
Answer
Percent
The
percent
key
converts
the
displayed
number
from
a
percentage
to
a
decimal.
Example*
43
9%
-
.439
Enter
Press
43.9
f
Display
0
439
When
I
scl
is
pressed
after
an
arithmetic
operation,
add
on.
discount,
and
percentage
can
be
computed
as
follows.
r+-
1
n
f
]Q
adds
n%
to
tne
number
displayed.
Example.
What
is
the
total
cost
of
a
$15
item
when
there
is
a
5%
sales
tax?
Enter
IS
S
Press
En
LT
1
1
,
1
C7
Display
15
15
75
n
[x][-]
subtracts
n%
from
the
number
displayed.
27