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Ö Computes mean
(average) of
x-value
s and
y-value
s using
accumulated statistics
(page
(page 77
77) ) ) ) .
(page
(page
77
77
h Computes weighted
y-
average of
(item) and
x
-(weight) values using
accumulated statistics
(page 81
(page
(page
(page
81
81) ) ) ) .
81
v Computes sample
standard deviations of
and
y-value
s using
accumulated statistics
(page
(page
(page 79
(page
79) ) ) ) .
79
79
R Linear estimate
(X-register), correlation
coefficient (Y-register).
x
Fits a line to a set of (
data pairs entered using
_, then extrapolates this
y-value
line to estimate a
x-value
for a given
. Also
computes strength of
r
linear relationship (
)
x
y
among that set of (
,
data pairs (page
(page 80
(page
(page
80) ) ) ) .
80
80
Q Linear estimate
(X-register), correlation
coefficient (Y-register).
x
Fits a line to a set of (
y
) data pairs entered
using _, then
extrapolates this line to
x-value
estimate an
for a
y
given
-value. Also
computes strength of
r
linear relationship (
)
x
y
among that set of (
,
data pairs (page
(page 80
80) ) ) ) .
(page
(page
80
80
Mathematics
Mathematics
Mathematics
Mathematics
r Computes square root
of number in displayed
X-register (page
(page 83
(page
(page
q Raises number in
Y-register to power of
number in X-register
(page
(page
(page 85
(page
85) ) ) ) .
85
85
y Computes reciprocal
of number in displayed
X-register (page
(page 83
(page
(page
x-
e Computes factorial
[n•(n–1)... 3•2•1] of
number in displayed
X-register ( ( ( ( page
page 83
page
page
> Natural antilogarithm.
e
Raises
(approximately
y
,
)
2.718281828) to power
of number in displayed
X-register (page
(page 83
(page
(page
¿ Computes natural
logarithm (base
number in displayed
X-register (page
(page 83
(page
(page
)
,
)
Function Key Index
Function Key Index
Function Key Index
Function Key Index
Number Alteration
Number Alteration
Number Alteration
Number Alteration
B Rounds mantissa of
10digit number in
83) ) ) ) .
X-register to match the
83
83
display (page
(page
(page 83
(page
Ñ Leaves only the
integer portion of
number in displayed
X-register by truncating
fractional portion
(page 83
(page
83) ) ) ) .
(page
(page
83
83
83) ) ) ) .
83
83
T Leaves only the
fractional portion of
number in displayed
X-register by truncating
83) ) ) ) .
83
83
integer portion
(page 84
(page
84) ) ) ) .
(page
(page
84
84
Stack Rearrangement
Stack Rearrangement
Stack Rearrangement
Stack Rearrangement
~ Exchanges contents
83) ) ) ) .
83
83
of X and Y-registers of
stack (pages
(pages 74
(pages
(pages
172) ) ) ) .
172
172
172
e
) of
d Rolls down contents
83) ) ) ) .
83
83
of stack for viewing in
displayed X-register
(page 172
(page
172) ) ) ) .
(page
(page
172
172
F Recalls number
displayed before the
previous operation back
into the displayed
X-register (pages
and 176
and
and
and
176
176) ) ) ) .
176
207
207
207
207
83) ) ) ) .
83
83
74 and
74
74
and
and
and
(pages 74
74
(pages
(pages
74
74
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