HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Pobierz pdf (Strona 435)

100

101

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

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

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.

SOLVE(En,var,guess)

Example:

SOLVE(X

-X-2,X,3) returns 2

This function also returns an integer that is indicative of the type of solution found, as follows:

0—an exact solution was found

1—an approximate solution was found

2—an extremum was found that is as close to a solution as possible

3—neither a solution, an approximation, nor an extremum was found

Spreadsheet app functions

The spreadsheet app functions can be selected from the App Toolbox menu: press , tap and

select Spreadsheet. They can also be selected from the View menu ( ) when the Spreadsheet app is

open.

The syntax for many, but not all, the spreadsheet functions follows this pattern:

functionName(input,[optional parameters])

Input is the input list for the function. This can be a cell range reference, a simple list or anything that

results in a list of values.

App menu 387

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