HP 40gs Manuel d'utilisateur Page 267

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Equation Writer 15-15
Press to obtain the an
intermediate result (4
2
– 4)
and again to
evaluate the intermediate
result. The final answer is 12.
Second option: arguments first, then function
Enter your expression, using
the rules of selection
described earlier.
2 4
The entire expression is now selected.
Now press and select
FACTOR. Notice that the
FACTOR is applied to
whatever was selected
(which is automatically
placed in parentheses).
Press to evaluate the
expression. The result is the
factors of the expression.
Because the result of an
evaluation is always
selected, you can immediately apply another command
to it.
To illustrate this, press
, select SUBST and
then press or .
Note that SUBST is applied
to whatever was selected
(which is automatically
placed in parentheses). Note too that the cursor is
automatically placed in the position of the second
argument.
Enter the second argument,
x=4.
hp40g+.book Page 15 Friday, December 9, 2005 1:03 AM
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