HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Pobierz pdf (Strona 204)

100

101

11.

Press to return to Plot view.

Notice that your new calculations are displayed.

12.

Tap point B and then press to select it.

13. Use the cursor keys to move point B along the graph. Note that with each move, the results of the

calculations shown at the top left of the screen change. To deselect point B, tap point B and then press

Calculations in Plot view

By default, calculations in Plot view are docked to the upper left of the screen. You can drag a calculation from

its dock and position it anywhere you like; however, after being undocked, the calculation scrolls with the

display. Tap and hold a calculation to edit its label. An edit line opens so that you can enter your own label.

You can also tap

and select a dierent color for the calculation and its label. Tap when

you are done.

Trace the derivative

Point D is the point whose ordinate value matches the derivative of the curve at point B. It is easier to see how

the derivative changes by looking at a plot of it rather than comparing subsequent calculations. We can do

that by tracing point D as it moves in response to movements of point B.

First we’ll hide the calculations so that we can better see the trace curve.

Press to return to Numeric view.

Select each calculation in turn and tap . All calculations should now be deselected.

Press to return to Plot view.

Tap point D and then press to select it.

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