HP HP12C hp 12c_user's guide_English_E_HDPMBF12E44.pdf - Page 205

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Page 205 highlights

Function Key Index 205 Ö Computes mean (average) of x-values and y-values using accumulated statistics (page 77).  Computes weighted average of y-(item) and x-(weight) values using accumulated statistics (page 81). v Computes sample standard deviations of xand y-values using accumulated statistics (page 79). R Linear estimate (X-register), correlation coefficient (Y-register). Fits a line to a set of (x,y) data pairs entered using _, then extrapolates this line to estimate a y-value for a given x-value. Also computes strength of linear relationship (r) among that set of (x, y) data pairs (page 80). Mathematics r Computes square root of number in displayed X-register (page 83). q Raises number in Y-register to power of number in X-register (page 85). y Computes reciprocal of number in displayed X-register (page 83). e Computes factorial [n•(n-1)... 3•2•1] of number in displayed X-register (page 83). > Natural antilogarithm. Raises e (approximately 2.718281828) to power of number in displayed X-register (page 83). ¿ Computes natural logarithm (base e) of number in displayed X-register (page 83). Q Linear estimate (X-register), correlation coefficient (Y-register). Fits a line to a set of (x, y) data pairs entered using _, then extra-polates this line to estimate an x-value for a given y-value. Also computes strength of linear relationship (r) among that set of (x,y) data pairs (page 80). Number Alteration B Rounds mantissa of 10digit number in X-register to match the display (page 83). Ñ Leaves only the integer portion of number in displayed X-register by truncating fractional portion (page 83). T Leaves only the fractional portion of number in displayed X-register by truncating integer portion (page 84). Stack Rearrangement ~ Exchanges contents of X and Y-registers of stack (pages 74 and 172). d RolIs down contents of stack for viewing in displayed X-register (page 172). F Recalls number displayed before the previous operation back into the displayed X-register (pages 74 and 176). File name: hp 12c_user's guide_English_HDPMBF12E44 Printered Date: 2005/7/29 Page: 205 of 209 Dimension: 14.8 cm x 21 cm

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Function Key Index
205
File name: hp 12c_user's guide_English_HDPMBF12E44
Page: 205 of 209
Printered Date: 2005/7/29
Dimension: 14.8 cm x 21 cm
Ö
Computes mean
(average) of
x-value
s and
y-value
s using
accumulated statistics
(page 77)
.
Computes weighted
average of
y-
(item) and
x
-(weight) values using
accumulated statistics
(page 81)
.
v
Computes sample
standard deviations of
x-
and
y-value
s using
accumulated statistics
(page 79)
.
R
Linear estimate
(X-register), correlation
coefficient (Y-register).
Fits a line to a set of (
x
,
y
)
data pairs entered using
_
, then extrapolates this
line to estimate a
y-value
for a given
x-value
. Also
computes strength of
linear relationship (
r
)
among that set of (
x
,
y
)
data pairs
(page 80)
.
Q
Linear estimate
(X-register), correlation
coefficient (Y-register).
Fits a line to a set of (
x
,
y
) data pairs entered
using
_
, then
extra-polates this line to
estimate an
x-value
for a
given
y
-value. Also
computes strength of
linear relationship (
r
)
among that set of (
x
,
y
)
data pairs
(page 80)
.
Mathematics
r
Computes square root
of number in displayed
X-register
(page 83)
.
q
Raises number in
Y-register to power of
number in X-register
(page 85)
.
y
Computes reciprocal
of number in displayed
X-register
(page 83)
.
e
Computes factorial
[n•(n–1)... 3•2•1] of
number in displayed
X-register
(page 83)
.
>
Natural antilogarithm.
Raises
e
(approximately
2.718281828) to power
of number in displayed
X-register
(page 83)
.
¿
Computes natural
logarithm (base
e
) of
number in displayed
X-register
(page 83)
.
Number Alteration
B
Rounds mantissa of
10digit number in
X-register to match the
display
(page 83)
.
Ñ
Leaves only the
integer portion of
number in displayed
X-register by truncating
fractional portion
(page 83)
.
T
Leaves only the
fractional portion of
number in displayed
X-register by truncating
integer portion
(page 84)
.
Stack Rearrangement
~
Exchanges contents
of X and Y-registers of
stack
(pages 74 and
172)
.
d
RolIs down contents
of stack for viewing in
displayed X-register
(page 172)
.
F
Recalls number
displayed before the
previous operation back
into the displayed
X-register
(pages 74
and 176)
.