Naming Conventions - HP 39g Master Manual

If your new aplet is going to be concerned with analyzing data then your best
choice for a parent would probably be the Statistics aplet. On the other hand
if you were planning to write an aplet to teach the behavior of graphs then the
Function or Parametric aplets would obviously be best. All the tools of the
parent are available to the child, so consider carefully what tools you require.

Naming conventions

The process starts by making a copy of the parent aplet and giving it
whatever name you want to use for your new aplet. This copy will form the
core of your new aplet. Decide also what prefix to use for the programs you
will associate with your new aplet. The prefix needs to be recognizably
linked to the name of the aplet, so that the user can know which programs to
delete when they want to clear the programs out after deleting the aplet from
the APLET view after use.
For example, an aplet called "Linear
Equations" might have a list of programs:
The next stage is to plan your VIEWS menu. The VIEWS menu is the
controller of your aplet. It pops up when the user presses the VIEWS key or
at a programming command, and offers a choice of options to the user. Most
of the options in your VIEWS menu will be triggers for 'helper' programs you
will write, and when the user chooses an option and presses ENTER, the
appropriate 'helper' program will be run by the hp 39g+. When the 'helper'
program terminates the calculator drops into whatever view you as the
designer choose. For example, a 'helper' program might set up axes based
on the data entered and then drop the user into the PLOT view.
Calculator Tip
When designing aplets you should consider using the ADK
as it makes the process far easier. To use the ADK you
must have the Connectivity Kit and for models before the
hp 39g+ this means buying a cable. We will begin by
assuming that you have only the calculator and create our
first two aplets entirely on the hp 39g+. We will then look
at two more examples using the ADK.
.LINEQ.SV
.LINEQ.EN
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.LINEQ.S
.LINEQ.DIS