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:
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
> >
> > >
> > >
> >
>
>
>
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