[BlindMath] Drawing trigonometric Functions and their Graphs

Fri Jul 20 20:31:11 UTC 2018

The Desmos graphing calculator can

1. Evaluate a derivative at a given point to a number
2. Evaluate a definite integral to a number
3. Plot a derivative
4. Plot an integral where one of the bounds is a function of x

It does not symbolically evaluate derivatives or integrals (like e.g.
Wolfram Alpha does). The calculator is purposefully not a Computer Algebra
System, which is important because it means that the calculator can be used
on some exams that disallow the use of a CAS.

On Fri, Jul 20, 2018 at 11:28 AM Ken Perry via BlindMath <
blindmath at nfbnet.org> wrote:

> So is it mainly a graphing calculator?  I am just wondering if it does
> derivatives and Integrals.
>
> -----Original Message-----
> From: BlindMath <blindmath-bounces at nfbnet.org> On Behalf Of Jason Merrill
> via BlindMath
> Sent: Friday, July 20, 2018 2:17 PM
> To: Blind Math list for those interested in mathematics
> <blindmath at nfbnet.org>
> Cc: Jason Merrill <jason at desmos.com>; Elise Berkley <bravaegf711 at gmail.com
> >
> Subject: Re: [BlindMath] Drawing trigonometric Functions and their Graphs
>
> I can provide a little bit more information about Desmos.
>
> The graphing calculator at https://www.desmos.com/calculator is designed
> to
> work well with a screen reader (and so are the four function and scientific
> calculators at https://www.desmos.com/fourfunction and
> https://www.desmos.com/scientific).
>
> The graphing calculator can also produce audio representations of graphs.
> There's a short intro video about how that works at the top of our
> accessibility documentation: https://www.desmos.com/accessibility
>
> For turning in work, there are a couple of good options.
>
> 1. Share a link: every time you save a graph, we produce a unique url for
> the saved work, so you could save a graph and then send someone a link to
> the url that shows up in the url bar. That would allow them to see your
> work
> online.
> 2. Use your browser's File > Print function to produce a visual printout 3.
> Export an image from the share menu (CTRL + ALT + S on Windows, CTRL +
> COMMAND + S on mac).
>
> If you have access to a tactile graphics embosser, you could print the
> exported image on that printer. I've been experimenting with printing to a
> VP Max embosser this week, and I've found that printing an image exported
> as
> "Size": "Medium Square", "Line Thickness": "Thin" works passably well.
>
> We're interested in improving our ability to produce tactile graphics,
> though. I think the biggest improvement will be allowing printing axis
> numbers (and other lables) as Braille. There's also room to improve the dot
> heights and line thicknesses for better legibility.
>
> I would love to chat more with any teachers or students who are interested
> in producing tactile cartesian graphs. Feel free to e-mail me directly (
> jason at desmos.com) if you have ideas about this, or if you'd be interested
> in
> testing improved Desmos tactile graphics.
>
> Best,
>
> Jason
>
> Jason Merrill
> Lead Calculator Engineer
> Desmos, Inc.
>
> On Tue, Jul 17, 2018 at 6:50 AM Wershing, Alice D. via BlindMath <
> blindmath at nfbnet.org> wrote:
>
> > Desmos is an open source graphing online program, that has built in
> > accessibility for graphing.  I have not used it with any students, so I
> > will be interested in learning how it actually works.   When I searched
> > about printing, it seems that printing is best in chrome.   There is
> > information on using braille input devices and screen reading
> > software, but I don't know if printing will produce anything tactile.
> > I can't seem to embed a link right now in my email, here is the
> > printed link to their accessibility page-
> > https://www.desmos.com/accessibility
> >
> > Looking forward to learning more about how this may work.  I don't
> > have any students who are blind, and have been researching math
> > accessibility for several years, so please post your findings!
> >
> > Alice D. Wershing, M.Ed., A.T.P., C.P.A.A.C.
> > Disability Services, Technology Specialist Pellissippi State Community
> > College
> > 865-694-6751 <(865)%20694-6751> <(865)%20694-6751>
> > 865-539-7699 <(865)%20539-7699> <(865)%20539-7699> (fax)
> >
> > East TN Region Accessibility Specialist Tenessee Board of Regents-TN
> > eCampus
> >
> > PSCC Access for All Blog
> > PSCC Accessible Format Facebook Page (PSCC-Disability Services) PSCC
> > Access4All Twitter Feed (@Access4allPSCC)
> >
> >
> >
> >
> >
> > -----Original Message-----
> > From: BlindMath [mailto:blindmath-bounces at nfbnet.org] On Behalf Of
> > Elise Berkley via BlindMath
> > Sent: Monday, July 16, 2018 7:59 PM
> > To: blindmath <blindmath at nfbnet.org>
> > Cc: Elise Berkley <bravaegf711 at gmail.com>
> > Subject: [BlindMath] Drawing trigonometric Functions and their Graphs
> >
> > I do have braille graph paper, but is there a better way? Is there a
> > program to input data and print a graph? Thanks for being my lifesavers!
> > Elise--
> > Elise Berkley and Becky Berkley
> > Okay, everyone. Elise again!
> > Another question: What is the simplest way for us to draw graphs of
> > trigonometric functions?
> >
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> > http://www.blindscience.org/blindmath-gems-home>
> >
> > _______________________________________________
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> > com
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> >
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