HP 48gII Manual do Utilizador descarregar pdf (Página 80)

Page 5-2

After building the object, press to show it in the stack (ALG and RPN modes

shown below):

Simple operations with algebraic objects

Algebraic objects can be added, subtracted, multiplied, divided (except by

zero), raised to a power, used as arguments for a variety of standard

functions (exponential, logarithmic, trigonometry, hyperbolic, etc.), as you

would any real or complex number. To demonstrate basic operations with

algebraic objects, let’s create a couple of objects, say ‘π*R^2’ and ‘g*t^2/4’,

and store them in variables A1 and A2 (See Chapter 2 to learn how to create

variables and store values in them). Here are the keystrokes for storing

variables A1 in ALG mode:

³„ì*~rQ™ K ~a1 `

resulting in:

The keystrokes corresponding to RPN mode are:

³„ì*~rQ`~a1 K

After storing the variable A2 and pressing the key, the screen will show the

variables as follows:

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 174 175

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HP 48gII Manual do Utilizador Página 80