Deleting Downloaded Aplets From The Calculator - HP 39g Master Manual

Deleting downloaded aplets from the
calculator
As was mentioned earlier, most of the aplets
you download will have 'helper' programs
associated with them. These are stored in the Program Catalog. Apart
from curiosity, there is one important respect in which you need to know
about these programs and how to locate them, and that is when it comes
time to delete an aplet. As you would expect, this is initially done in the
APLET view by highlighting the aplet and then pressing DEL.
If the aplet is a simple copy of one of the standard ten, then that is the end of
the process. However if the aplet has a set of one or more programs
associated with it then those programs will not be deleted and will still be
taking up memory. To delete these left over programs you will need to switch
to the Program Catalog and remove them. Even on an hp 39g+ it is
advisable to do this or your memory will gradually be used up.
As an example of this, look at the aplet called
"Coin Tossing" shown in the APLET view right.
Looking at the list of programs shown in the
Program Catalog view, you will see a set of
programs which all begin with the letters
.COIN. The convention encouraged by
Hewlett-Packard is to name the programs so
that it is fairly obvious which ones belong to
which aplet, hence the .COIN code for an
aplet called "Coin Tossing".
Simply position the highlight on each of the
programs in turn and press the DEL key. If
your calculator only contains one aplet with
programs linked, then it is faster to use SHIFT
CLEAR to delete all programs at once.
The Program Catalog view has no key. If you store a large number
of aplets then you may find that you start to have trouble telling what program
belongs and what should be deleted. For the average user this probably will
not be a problem. The naming convention should ensure that you are able to
work out which is which. If you know the first letter of the name of the
program then pressing that letter on the keyboard will take you to it.
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