HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Pobierz pdf (Strona 72)

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Where to start

The home base for the calculator is the Home view ( ). You can do all your nonsymbolic calculations

here. You can also do calculations in CAS view, which uses the computer algebra system. In fact, you can use

functions from the CAS menu (one of the Toolbox menus) in an expression you are entering in Home view, and

use functions from the Math menu (another of the Toolbox menus) in an expression you are entering in CAS

view.

Choosing an entry type

The rst choice you need to make is the style of entry. The three types are as follows:

●

Textbook

An expression is entered in much the same way as if you were writing it on paper (with some arguments

above or below others). In other words, your entry could be two-dimensional, as in the example above.

●

Algebraic

An expression is entered on a single line. Your entry is always one-dimensional.

●

Reverse Polish Notation (RPN) [Not available in CAS view.]

The arguments of the expression are entered rst followed by the operator. The entry of an operator

automatically evaluates what has already been entered. Thus you will need to enter a two-operator

expression (as in the example above) in two steps, one for each operator:

Step 1: 5 —the natural logarithm of 5 is calculated and displayed in history.

Step 2: – π is entered as a divisor and applied to the previous result.

NOTE: On page 2 of the Home Settings screen, you can specify whether you want to display your

calculations in Textbook format. This refers to the appearance of your calculations in the history section of

both Home view and CAS view. This is a dierent setting from the Entry setting discussed above.

Entering expressions

The examples that follow assume that the entry mode is Textbook.

●

An expression can contain numbers, functions, and variables.

●

To enter a function, press the appropriate key, or open a Toolbox menu and select the function. You can

also enter a function by using the alpha keys to spell out its name.

●

When you have nished entering the expression, press to evaluate it.

If you make a mistake while entering an expression, you can do any of the following:

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