HP 50g Graphing Calculator User Manual

Page 85

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Press ‚¯to recover the original expression. Next, enter the following
keystrokes: ˜˜˜™™™™™™™———‚™ to select
the last two terms in the expression, i.e.,

press the

@FACTO soft menu key, to get

Press ‚¯to recover the original expression. Now, let’s select the entire
expression by pressing the upper arrow key (—) once. And press the

@FACTO

soft menu key, to get

Press ‚¯to recover the original expression.

Using the CMDS menu key
With the original polynomial expression used in the previous exercise still
selected, press the L key to show the

@CMDS and @HELP soft menu keys. These

two commands belong to the second part of the soft menu available with the
Equation Writer. Let’s try this example as an application of the

@CMDS soft menu

key: Press the

@CMDS soft menu key to get the list of CAS commands:

Note: Pressing the

@EVAL or the @SIMP soft menu keys, while the entire original

expression is selected, produces the following simplification of the expression:

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