The 48G saves the day.


This morning, while getting ready for school, I was deciding whether I should pack the 48G or my new 32SII which I didn't have the manual for (yet). I put the 32SII in my back and unpacked the 48G, then thought better of it. Quiz day is not the day to find out you made a poor decision.

This class I'm taking is fiber optics. The instructor's policy is that we can't use any notes or anything, not even a formula sheet. He said he would put everything we need in the board. Fair enough. He didn't put one very necessary formula up though. He obviously forgot it, but being a senior professor, his ego couldn't handle admitting that, so he just claimed that we should have had that one memorized. (jerk)

The other thing he forgot to put up was the mass of an electron. That cost a lot of people the problem, but since I had the good fortune of having my 48G handy, I just calmly went into the constant library and plopped it into the stack. That problem was the difference between an A and a B. Thanks HP!


PS - Next time, I think I will fill up a program in my TI-85 with all the formulas I will really need, hehehe. To me there is no difference between having a formula sheet and having it electronically saved in the calculator. To me, engineering is not about memorizing formulas, but how to use them.


Why not save the formulas on your 48G? You could save them as algebraic objects, text (character strings), RPL programs, or same combination of these.



Is there a way to do it where I could recall them all into one 'window' and scroll down through it? That's what I have in mind.

FWIW, I think TI's version of BASIC that's included in the TI-85 is outstanding. Very intuitive. Don't get me wrong, I still love the HP, but it is not nearly as easy to program.



Give a chance to RPL: you don't want BASIC anymore!!

Raul (Daily user of a 48GX)


> Is there a way to do it where I could recall them all into one 'window' and scroll down through it?

There is, but it would probably be easier to simply enter them on the stack, either directly or using the equation editor ([L-Shift] [ENTER]), then save them to a variable in a specific directory. Then, when you need to use it, recall it from the variable by pressing the appropriate soft-key ([A]-[F]) on the top row. Once the equation object is at level one on the stack, you can then save it to a variable called 'EQ' ('EQ' [STO] or, if 'EQ' is already defined in the current directory, [L-Shift] <[A]-[F]>), for use by the solver ([R-Shift][7][F]).


Or I suppose that you could embed the algebraic object within a program
or list, followed by a character string with notes on its use.

But of course, don't use this method to cheat in class; that's the
reason that certain calculators are forbidden in many classes.




On second thought, keep your "cheat sheet" on the TI-85, so that if
you're caught, it'll be the TI that gets outlawed for the class.



> Or I suppose that you could embed the algebraic object within a program or list, followed by a character string with notes on its use.

Indeed. For maximum flexibility, it should then be packaged as a library, stored in port memory (of limited value in the case of a 48G, but useful in the other models), and ATTACHed as necessary.

But that would be substantially more involved than storing them as symbolic objects. :^)


And let's not forget some sort of "Fake Memory Cleared" program, to "prove" that no notes are stored on the calculator.

Of course, it might be better to have a 48GX and archive HOME to a RAM card which could be concealed in a pocket, and do a real memory clear.




Kiss that A goodby.

the "jerk"


Aren't you clever? You just can't keep your mouth shut, you sniveling, bragging little cheater. Well, graphing calculators and their memory capabilities are now banned. For cheating, you flunk the course. Brag about that next time, you whining little loudmouth.


That's what it's about.

However, you might not want to boast to loudly as you have left your name and address (area of the country) on your Bio sheet. Any jealous fellow classmate or whatever, may RAT you out.

Don't be to critical of professors EVER, until after you graduate, as they read this group too. Jeremy isn't that common of a name.

Did you consider using your Eq. Lib. also for reference as it also has Optics eq. that could have been loaded into the solver for quick and easy solutions and answers if any were of use.


I think he just puts the equations on the board for the people who are just using normal scientific calculators.

He knows that calculators are programmable nowadays, so this is nothing new.

I'm pretty sure he doesn't read this forum, and who says my name is really Jeremy? Hehehe.


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