# HP -22S Owner's Manual Page 177

Scientific calculator.

Function
Keys and Description
Page
%
.00
43
Divides displayed number
n
by
100
(n
.00.
n1
x
n
.00.
n1
-+-
n
.00).
or calculates
n%
of
n1 (n1
+
n
.00.
n1 -
n
.00)·
%CHG
.I%CHGI
44
Percent change between numbers
n1
and
n2.
en-
tered as
n1
1
INPUT I n2·
'II"
.W
44
Displays'll"
(3.14159265359)
in current display
format.
2:+
12:+
I
60
Accumulates x- and y-values into statistics
registers .
2:-
• CEJ
61
Removes x- and y-values from the statistics
registers.
~x
1
STAT I
{I} {x}
62
Sum of the x statistical data.
~x2
1
STAT I
{I} {x
2 }
62
Sum of the squares of the x statistical data.
~xy
1
STAT I
{I} {Xy}
62
Sum of the products x x y for the statistical data.
~y
1
STAT I
{I} {y}
62
Sum of the y statistical data.
~y2
1
STAT I
{I} {y2}
62
Sum of the squares of the y statistical data .
ASS
• 1
PARTS I
{ABS}
52
Absolute value .
ACOS
1
ACOSI
45
Arc cosine .
ACOSH
• 1
HYP I
.1
ACOS I
51
Hyperbolic arc cosine .
ALL
• 1
OISP I
{ALL}
25
Displays all non-zero digits .
ANGLE
• 'ANGLEI
48
Coordinate conversions; stores or calculates the
(J
polar coordinate.
Function Index
177