HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Pobierz pdf (Strona 73)

100

101

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Delete the character to the left of the cursor by pressing .

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Delete the character to the right of the cursor by pressing .

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Clear the entire entry line by pressing or .

Example

To calculate :

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Enter 23 14 8 3 45

This example illustrates a number of important points to be aware of, as follows:

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The importance of delimiters (such as parentheses)

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How to enter negative numbers

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The use of implied versus explicit multiplication.

Parentheses

As the example above shows, parentheses are automatically added to enclose the arguments of functions, as

in LN(). However, you will need to manually add parentheses—by pressing —to enclose a group of

objects you want operated on as a single unit. Parentheses provide a way of avoiding arithmetic ambiguity. In

the example above we wanted the entire numerator divided by –3, thus the entire numerator was enclosed in

parentheses. Without the parentheses, only 14√8 would have been divided by –3.

The following examples show the use of parentheses, and the use of the cursor keys to move outside a group

of objects enclosed within parentheses.

Mathematical calculations 25

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 700 701

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