15.76 I
enter
I6 §)[%] 8.95 Calculates 6% tax.
0
16.71
Total
cost
(base
price
+ tax).
Suppose that the
$15.76
item cost
$16.12
last
year.
What is the per
centage change from last year's price to this year's?
Keys:
Display:
Description:
16.12 I
enter
I15.76 This year's price
Hi
%chg
I -2.23 dropped about
2.2%
from last year's price.
BrPispl
{FX} 4
-2.2333
Restores FIX 4 format.
Note that the order of the two numbers is important for the %CHG
function. The order affects whether the percentage change is
consid
ered positive or negative.
Conversion
Functions
There are three types of conversions: coordinate (polar/rectangular),
angular (degrees/radians),
and
fractional (decimal/minutes-seconds).
Coordinate
Conversions
(P—RECT)
Rectangular coordinates
(x,
y)
and
polar coordinates (r, 6) are mea
sured as shown in the illustration. Functions in the
P*-*RECT
(polar
from/to
rectangular)
menu convert between the
two.
The angle 0 uses
the units set by the current angular mode. A calculated result for 6
will
be
between
—180°
and
180°,
between
—ir
and
ir
radians,
or
be
tween —200
and
200 grads.
60
4:
Real-Number
Functions
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