HP 40gs HP 39gs_40gs_Mastering The Graphing Calculator_English_E_F2224-90010.p - Page 226
Copying & Creating aplets on the calculator - software
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COPYING & CREATING APLETS ON THE CALCULATOR This chapter assumes a reasonable degree of familiarity with the majority of the built-in aplets. 34 As has been discussed before, the designers of this calculator provided a set of standard aplets for you to use, changing the capabilities of the calculator as you change aplet. These standard aplets will cover most, if not all, of your requirements but to a certain extent you can also modify them to suit your needs and copy them for your friends. No programming is necessarily required at the lowest level and so, unless you want to learn about the programming language of the hp 39gs & hp 40gs, there is no reason to worry about it unless you want to produce highly enhanced aplets. In this chapter we will cover the creation of aplets and, to a lesser extent, programs and notes on the calculator together with the ability to transfer them to another calculator via cable (hp 40gs) or infra-red (hp 39gs). Generally this will involve making small modifications to the standard aplets and saving them under a new name. In a chapter which follows we will cover the use of software on a PC to do this. As well as this you can download additional aplets and programs written by people who do enjoy programming. These aplets come via the Internet, but you may be able to obtain them from your teacher, from other users, or from a PC onto which they have been copied. Once aplets have been copied from the Internet the USB cable provided with your calculator can be used to download the aplets to the calculator. This will also be covered in a subsequent chapter on page 245. We will begin by discussing how to send and receive aplets and programs from one calculator to another and then proceed on to how to create them. This may sound backwards but my experience has been that most users arrive at this topic by deciding that they want to know how to send/receive and only afterwards start asking themselves what to send/receive! 226