Hp Prime Graphing Wireless Calculator Uživatelský manuál stáhnout pdf (Strana 143)

Functions and commands 139

Function app functions

The Function app functions provide the same functionality found in

the Function app's Plot view under the FCN menu. All these

operations work on functions. The functions may be expressions in

X or the names of the Function app variables F0 through F9.

AREA Area under a curve or between curves. Finds the signed area

under a function or between two functions. Finds the area

under the function Fn or below Fn and above the function Fm,

from lower X-value to upper X-value.

AREA(Fn,[Fm,]lower,upper)

Example:

AREA(-X,X

-2,-2,1) returns 4.5

EXTREMUM Extremum of a function. Finds the extremum (if one exists) of

the function Fn that is closest to the X-value guess.

EXTREMUM(Fn, guess)

Example:

EXTREMUM(X

-X-2,0) returns 0.5

ISECT Intersection of two functions. Finds the intersection (if one

exists) of the two functions Fn and Fm that is closest to the X-

value guess.

ISECT(Fn,Fm,guess)

Example:

ISECT(X,3-X,2) returns 1.5

ROOT Root of a function. Finds the root of the function Fn (if one

exists) that is closest to the X-value guess.

ROOT(Fn,guess)

Example:

ROOT(3-X

,2) returns 1.732…

SLOPE Slope of a function. Returns the slope of the function Fn at the

X-value (if the function’s derivative exists at that value).

SLOPE(Fn,value)

Example:

SLOPE(3-X

,2) returns -4

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Hp Prime Graphing Wireless Calculator Uživatelský manuál Strana 143