Hp 39g Graphing Calculator Uživatelský manuál stáhnout pdf (Strana 71)

Access FCN

variables

The FCN variables are contained in the VARS menu.

To access FCN variables in HOME:

I VARS I EBTO

Select V\ot FCN

0 or to choose a

variable 03

*.,■ 1 r*4 1 1

—

FUNCTinN 'im

Plot

Plot mi Extremum

Symbolic

I sect

Numeric »

Root »

To access FCN variable in the Function aplet's Symbolic

view:

VARS

Select Vlot. FCN

0 or 0 to choose a variable

FCN functions The FCN functions are:

Function

Root

Extremum

Slope

Description

Select Root to find the root of the

current function nearest the cursor.

If no root is found, but only an

extremum, then the result is labeled

EXTR; instead of ROOT;. (The

root-finder is also used in the Solve

aplet. See also “Interpreting results”

on page 7-6.) The cursor is moved to

the root value on the x-axis and the

resulting A'-value is saved in a

variable named ROOT.

Select Extremum to find the

maximum or minimum of the

current function nearest the cursor.

This displays the coordinate values

and moves the cursor to the

extremum. The resulting value is

saved in a variable named

EXTREMUM.

Select Slope to find the numeric

derivative at the current position of

the cursor. The result is saved in a

variable named SLOPE.

Function aplet

3-9

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Hp 39g Graphing Calculator Uživatelský manuál Strana 71

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