HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Pobierz pdf (Strona 177)

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Summary of FCN operations

Operation Description

Sketch Starts Sketch Mode, which enables you to sketch a function with your nger.

NOTE: This is the same function as .

Denition Opens the editor for the selected function denition in Plot view, which enables you to directly edit the

function denition or transform the graph.

Transform Starts Transformation Mode.

In Transformation Mode, you can translate the selected function vertically or horizontally, dilate the

selected function horizontally, or directly edit the function denition.

Root Select Root to nd the root of the current function nearest to the tracing cursor. The cursor is moved to

the root value on the x-axis and the resulting x-value is saved in a variable named Root. If no root is

found, but only an extremum, then the result is labeled Extremum instead of Root.

Intersection Select Intersection to nd the intersection of the graph you are currently tracing and another graph.

You need to have at least two selected expressions in Symbolic view. Finds the intersection closest to

the tracing cursor. Displays the coordinate values and moves the cursor to the intersection. The

resulting x-value is saved in a variable named Isect.

Slope Select Slope to enable or disable the ability to display the numeric derivative of the current function at

the current position of the tracing cursor. The result is saved in a variable named Slope.

Signed area Select Signed area to nd the numeric integral. (If there are two or more expressions selected, then

you will be asked to choose the second expression from a list that includes the x-axis.) Select a starting

point and an ending point. The result is saved in a variable named SignedArea.

Extremum Select Extremum to nd the maximum or minimum of the current function nearest to the tracing

cursor. The cursor moves to the extremum and the coordinate values are displayed. The resulting x-

value is saved in a variable named Extremum.

Tangent Select Tangent to enable or disable the ability to draw a line tangent to the current function graph

through the current position of the tracing cursor.

Dening functions in terms of derivatives or integrals

The Function app accepts functions dened in terms of derivatives or integrals. This section describes the

methods for each of these cases, with examples.

Functions dened by derivatives

Suppose we wish to plot the graph of the function f(x), dened by . We could

enter this function directly, but here we

dene the function as F1(X) and its derivative in F2(X).

Press to go to the Symbolic view.

Summary of FCN operations 129

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