HP 113394 User Guide - Page 271

Function Key Index

271

File name: hp 12c pt_user's guide_English_HDPMF123E27

Page: 271 of 275

Printed Date: 2005/8/1

Dimension: 14.8 cm x 21 cm

Ö

Computes mean

(average) of

x-value

s and

y-value

s using

accumulated statistics

(page 94)

.



Computes weighted

average of

y-

(item) and

x

-(weight) values using


(page 99)

.

v

Computes sample

standard deviations of

x-

and

y-value

s using


(page 96)

.

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 97)

.

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 97)

.

Modes

]

sets calculator to

RPN mode

(page 19)

.

[

sets calculator to

algebraic (ALG) mode

(page 19)

.

Mathematics

r

Computes square root

of number in displayed

X-register

(page 100)

.

q

Raises number in

Y-register to power of

number in X-register

(page 102)

.

y

Computes reciprocal


X-register

(page 100)

.

e

Computes factorial

[n•(n–1)... 3•2•1] of

number in displayed

X-register

(page 100)

.

>

Natural antilogarithm.

Raises

e

(approximately

2.718281828) to power


X-register

(page 100)

.

¿

Computes natural

logarithm (base

e

) of

number in displayed

X-register

(page 100)

.

¡

Computes square of

the number displayed in

the X-register

(page 100)

.

Number Alteration

B

Rounds mantissa of

10-digit number in

X-register to match the

display

(page 100)

.

Ñ

Leaves only the

integer portion of

number in displayed

X-register by truncating

fractional portion

(page 101)

.

T

Leaves only the

fractional portion of

number in displayed

X-register by truncating

integer portion

(page 101)

.

Stack Rearrangement

Ø

Ù

Opens and

closes parenthesis in

ALG mode.

(page 239)

~

Exchanges contents

of X and Y-registers of

stack

(pages 90 and

230)

.

d

RolIs down contents

of stack for viewing in

displayed X-register

(page 230)

.

F

Recalls number

displayed before the

previous operation back

into the displayed

X-register

(pages 91

and 234)

.

HP 113394 User Guide - Page 271

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