HP 39gII, Руководство пользователя

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Programming 301
AREA
( Fn , [ Fm ,] lower, upper )
Example:
AREA
(-
X
,
X
2
-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
2
-
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
, 2) returns 1.732…
SLOPE Slope of a function. Returns the slope of the function Fn
at the
X
-value (if value exists).
SLOPE
( Fn, value )
Example:
SLOPE
(3-
X
2
, 2) returns -4
Solve app
functions
The Solve app has a single function that solves a given
equation or expression for one of its variables. En may be
an equation or expression, or it may be the name of one
of the Solve Symbolic variables E0-E9.
SOLVE Solve. Solves an equation for one of its variables. Solves
the equation En for the variable var , using the value of
guess as the initial value for the value of the variable var .
If En is an expression, then the value of the variable var
that makes the expression equal to zero is returned.