HP -22S Owner's Manual page 183

Function Keys and Description
Page
VARS
.1
MEM
I
{VARS}
40
catalog Displays catalog of variables.
x
2
.0
42
Square.
'Ix
IE) 42
Square root.
i(
1
STAT
I {;(,):::}
{;(} 63
Mean of the x statistical data.
l<
1
STAT
I
{L.R. } {x}
63
Calculates an estimate of x for the displayed y
using linear regression and the x,y-statistical
data .
xCOORD
• 1
xCOORD I
48
Coordinate conversions; stores or calculates the
x-coordinate.
xw
1
STAT
I
F,):::} Fw}
63
Weighted mean of the x statistical data weighted
according to the y-values.
y 1
STAT
I {;(,):::}
{Y}
63
Mean of the y statistical data.
y
I
STAT
I
{L.R. } {Y}
63
Calculates an estimate of y for the displayed x
using linear regression and the x,y-statistical
data .
yCOORD
•
I~COORDI
48
Coordinate conversions; stores or calculates the
x-coordinate.
yX
[Z] 32
Exponentiation operator.
Function Index 183