Re: HP48 vs TI-92 differentiation
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Dean Mao wrote:
>
> >
> >> did not impress me as a speedster. But honestly, how many kids sit
> >> there in the middle of a test shaking their calc and screaming "Graph
> >> damn you! The other kids were done a second ago!!""?
> >
> >I don't do that, but I do get mad when i'm 5 minutes behind the TI people
> >on differentiation.
>
> Isn't there a ML routine to do differentiation? Maybe someone could
> make one.... Since the built in diff. is not that great, maybe
> someone like Mika H. could design one and make the HP community happy?
>
That'd be cool. However, differentiation is a recursive process and
someone doing one would have to either call the SYS-RPL (just like it
does internally) or do the whole shebang in code. That is, check the
type of all of the sub-elements split up, etc. Still have to push and
pop with the stack (slow but sure.) Speed only bugs me a lot if
something requires me to press a button, wait, press a button, wait,
press a button, wait. In its favour, the HP48 allows me to blindfold
myself, hit the combination to derive and sit back.
Of course, screwing up in the middle of an exam and waiting for a 3
minute result with 2 minutes to the end of the test. . . . that's
probably tough too.
Of course, I'd be more than happy to utterly eat my words if someone
wrote a fast and safe derive that's just as functional, if they'd just
hand it out. . .
Matt.
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