HP 39gs Master Manual page 25

The screens right show the same two numbers
displayed as in turn as;
.
Engineering 4
Calculator Tip
If you have
or choose a Trig scale then you may end up with axes whose numeric
labels are horrible decimals (see below right).
The setting of
Fraction
in more detail on page 33.
The next alternative in the
point. In some countries a comma is used instead of a decimal point.
If you opt to use a comma rather than a full stop then any places where
a comma would normally be used (such as in lists) will swap to using a
full stop. Any functions which might normally have terms separated by a
comma will use a full stop instead. For example,
become
ROUND(3,456.2)
Moving back to our tour of the keyboard, the next key is
the key. This is used as an all purpose "I've
ENTER
finished - do your thing!" signal to the calculator.
In situations where you woul
calcul ators, press the
ENTER
key. This can be used to retrieve the final value of the last
ANS
calculation done. An example is shown right.
, and
Fixed 4 Scientific 4
turned on when you
Labels
can be quite deceptive to use and is discussed
view of
MODES Decimal Mark
.
d normally press the '
key instead. Above the
in (or out) on a graph
controls the character which is used as a decimal
will
ROUND(3.456,2)
' key on most
=
key is the
ENTER
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