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2008-05-21 by Brad Pollard
Hello, Longtime 48gx user and now have a 50g. though I never used any "advanced" functions on either calculator. any ways, I am now having to spend time with some resident students, and wish that there was a way I could store (somewhat) long mathematical derivations in my 50g. I don't think the equation editor fits this bill (I don't want to put in variables). Any ideas? Thanks, Brad
2008-05-22 by Don Hart
Are you talking about the series of equations going from the given one to the solution (aka, "showing your work")? Or are you talking about derivatives? Maybe an example of what you want to do would help explain your question. You don't say what you want to do with them. A list is a good structure to put multiple items in. I don't know how you're going to store anything without putting it in a variable, either directly or using a program that uses variables. --- Brad Pollard <bpollard@...> wrote:
> Hello, > Longtime 48gx user and now have a 50g. though I > never used > any "advanced" functions on either calculator. > > any ways, I am now having to spend time with some > resident students, > and wish that there was a way I could store > (somewhat) long > mathematical derivations in my 50g. I don't think > the equation editor > fits this bill (I don't want to put in variables). > > Any ideas? > Thanks, > Brad > >
2008-05-25 by Brad Pollard
Yes, a "show your work" is what I'm going after I guess.... something where I can write out the derivation that includes integral signs, etc. but yea, obviously I don't need or want variables as such What is the "list" that you speak of? any help is appreciated... Brad --- In 50g@yahoogroups.com, Don Hart <ddhart1@...> wrote:
> > Are you talking about the series of equations going > from the given one to the solution (aka, "showing your > work")? Or are you talking about derivatives? Maybe an > example of what you want to do would help explain your > question. > > You don't say what you want to do with them. A list is > a good structure to put multiple items in. > > I don't know how you're going to store anything > without putting it in a variable, either directly or > using a program that uses variables. > > --- Brad Pollard <bpollard@...> wrote: > > > Hello, > > Longtime 48gx user and now have a 50g. though I > > never used > > any "advanced" functions on either calculator. > > > > any ways, I am now having to spend time with some > > resident students, > > and wish that there was a way I could store > > (somewhat) long > > mathematical derivations in my 50g. I don't think > > the equation editor > > fits this bill (I don't want to put in variables). > > > > Any ideas? > > Thanks, > > Brad > > > > > >
2008-05-26 by Don Hart
Actually, the equation editor is not a bad way to
enter expressions. It's been completely revamped from
that of the hp48 is very useful now. But, of course.
you can enter expressions directly to the stack.
A list has many uses but in your case it can aggregate
several expressions into one object. Lets say you have
expression1, expression2, and expression3 on the stack
at levels 1 thru 3. If you enter 3 then press "prg" on
the keyboard then "type" on the softmenu and then
->list on the softmenu you'll end up with...
{expression1 expression2 expression3} on level 1 of
your stack. You can get back what you had by pressing
obj-> on the softmenu, and then do a "drop". For more
info check your manual.
Now, if you don't want to save this list in a
variable, you can leave it on the stack. But it's not
a good idea to leave objects on the stack and expect
them to stay there for long. For instance, an errant
program can cause a reset and you can lose the entire
stack.
--- Brad Pollard <bpollard@...> wrote:> Yes, a "show your work" is what I'm going after I > guess.... something > where I can write out the derivation that includes > integral signs, > etc. but yea, obviously I don't need or want > variables as such > What is the "list" that you speak of? > any help is appreciated... > Brad > > --- In 50g@yahoogroups.com, Don Hart <ddhart1@...> > wrote: > > > > Are you talking about the series of equations > going > > from the given one to the solution (aka, "showing > your > > work")? Or are you talking about derivatives? > Maybe an > > example of what you want to do would help explain > your > > question. > > > > You don't say what you want to do with them. A > list is > > a good structure to put multiple items in. > > > > I don't know how you're going to store anything > > without putting it in a variable, either directly > or > > using a program that uses variables. > > > > --- Brad Pollard <bpollard@...> wrote: > > > > > Hello, > > > Longtime 48gx user and now have a 50g. though I > > > never used > > > any "advanced" functions on either calculator. > > > > > > any ways, I am now having to spend time with > some > > > resident students, > > > and wish that there was a way I could store > > > (somewhat) long > > > mathematical derivations in my 50g. I don't > think > > > the equation editor > > > fits this bill (I don't want to put in > variables). > > > > > > Any ideas? > > > Thanks, > > > Brad > > > > > > > > > > > > > > ------------------------------------ > > Yahoo! Groups Links > > > > >