aspect ratio with zoom box

[diane....@gmail.com]

Is there a limit on the aspect ratio for Zoom Box? I have tried to
create a box that is long and thin and it won't graph. Any idea?

[Nelson Sousa]

I don't think so, there are only limits on the magnitude of xmin,
xmax, etc. Perhaps your box was degenerate? Try doing it in two or
more steps.

Nelson

[Steve A]

The screen will not go long and thin, just the relationship between a
large interval for one variable and a small interval for the other.
It's possible you didn't see the graph because the ordered pairs were
outside the intervals you specified.

On Nov 23, 1:36 pm, "diane.brob...@gmail.com"

[Jessica Kachur]

Does anyone have a two or three paragraph description of the Nspire vs the 84?  I just need something consise that gives a pretty clear description of the differences.
 

Jess Kachur
T3 Regional Instructor
Muka, CGC, TDI, CL2, CL3-F, CL3-S, CL3-H, TN-O, WV-N
and
Jibay, Sandy Acres lil' Phantom, CGC, CL3, CL4-F

 

[Nelson Sousa]

The differences? Well, I think it's best to give you the similarities:
there are none!

Listing the differences between 84 Plus and Nspire it's like comparing
DOS to Windows Vista. There's nothing in common between the two.

But, nevertheless, here are some differences I find the most relevant:

Speed: The difference in speed between the two is nothing less than a
factor of 10;

Connectivity between apps: Geometry, Spreadsheet, Calculator can be
linked like never before. Out of the box a Nspire has more power than
the 84 Plus operating system + Cellsheet app + Cabri Jr combined. It
allows linking between applications, so one can create a geometry
construction, capture data from it on a spreadsheet page and plot it
real time on a Data & Statistics app;

Graphing: while tracing a graph the cursor snaps directly to the
neares point of interest;

Document structure: add Graph, Spreadsheet or Calculator pages and
store all your work on a single document that can easily be sent to
students or from the students to the teacher.

Notes pages: with the possibility of adding multiple choice questions
and computing mathematical formulas it allows more power than
Notefolio and Studycards combined;

Calculator app: up to 900 digits in integer computation, allows for
real world combinatory problems without resorting to scientific
notation.


A lot more could be said, but I think it'd be easier just to show some
sample documents, and there's a rich variety to choose from, and just
show how Nspire works.

Cheers,
Nelson

[Ross]

If you are deciding between the TI-84 and TI-Nspire, the only reason
that I can think of to go with the 84 is learning curve. I don't know
about all schools, but in my school, the math teachers only know how
to use the TI-84, so if you get anything else, you are on your own for
help and learning. If you are a student and your teacher knows how to
use the TI-Nspire, then go with that. The Nspire improves in every
single way (except I/O in programming) on the TI-84, so unless
learning or price is a problem, go with the Nspire.

[Diane Broberg]

I know that the screen won't change, but it won't even create a new window if the box is not "regular" when choosing zoom box.  I know the zeroes were in the window, just nothing happens.