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Thread: Subscript and superscript notation and mathml
Number of posts in this thread: 4 (In chronological order)
From: Karen Sorensen
Date: Fri, May 13 2016 2:14PM
Subject: Subscript and superscript notation and mathml
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Hi -
I have been under the impression that subscript and superscript math and
science notation (ie, exponents) had to be in MathML to be accessible. Is
that true? I understand that if the number with the exponent is in an
equation, it should be in MathML, but if there is just a number with an
exponent, does it have to be in MathML for a screen reader to read it
accurately?
Thank you for your advice.
Best,
Karen
Karen M. Sorensen
Accessibility Advocate for Online Courses
www.pcc.edu/access
Portland Community College
971-722-4720
Twitter: @ksorensun
From: Brandon Keith Biggs
Date: Fri, May 13 2016 7:04PM
Subject: Re: Subscript and superscript notation and mathml
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Hello,
I am not sure math ml reads correctly let alone the plane text.
The screen reader will just read 22.
Thanks,
Brandon Keith Biggs <http://brandonkeithbiggs.com/>;
On Fri, May 13, 2016 at 1:14 PM, Karen Sorensen < = EMAIL ADDRESS REMOVED = >
wrote:
> Hi -
> I have been under the impression that subscript and superscript math and
> science notation (ie, exponents) had to be in MathML to be accessible. Is
> that true? I understand that if the number with the exponent is in an
> equation, it should be in MathML, but if there is just a number with an
> exponent, does it have to be in MathML for a screen reader to read it
> accurately?
> Thank you for your advice.
> Best,
> Karen
> Karen M. Sorensen
> Accessibility Advocate for Online Courses
> www.pcc.edu/access
> Portland Community College
> 971-722-4720
> Twitter: @ksorensun
> > > > >
From: Olaf Drümmer
Date: Sat, May 14 2016 1:43AM
Subject: Re: Subscript and superscript notation and mathml
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> On 14.05.2016, at 03:04, Brandon Keith Biggs < = EMAIL ADDRESS REMOVED = > wrote:
>
> I am not sure math ml reads correctly let alone the plane text.
> The screen reader will just read 22.
- for one, I'd say there is not just the one screenreader
- in addition, the screen readers I know have a zillion settings that determine how they present content beyond plain character based content (e.g. skip punctuation, skip non-Latin characters, etc.)
- screen readers are just one out of many types of assistive technology, please do not always only think about how accessibility might work in screen readers
- and last but not least: are there screen readers that do a good job at presenting MathML encoded content? Would that be for just presentation MathML or also for Content MathML? Is there are any other type of assistive technology that makes use of MathML encoded content to present the content or allow a user to interact with it (e.g. navigate the mathematical expression, copy specific pieces and carry it over into an equation tool, etc.)? I think MathType rom DesignScience is a good option, but when it comes to browsers it was tied to earlier versions of Internet Explorer, and thus won't work anymore on a typical up to date computer.
Olaf
From: Maxability Accessibility for all
Date: Sat, May 14 2016 8:34PM
Subject: Re: Subscript and superscript notation and mathml
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Superscript values are not announced properly by most screen readers.
However I have tried using the unicode values of <sup> i.e. ⊃. Using
this NVDA is properly announcing the values for ² and ³ but not
beyond them.
<span>150²</span><br />
I am not sure how the values visually appear when the unicode values are
used.
On Sat, May 14, 2016 at 1:13 PM, Olaf Drümmer < = EMAIL ADDRESS REMOVED = >
wrote:
>
> > On 14.05.2016, at 03:04, Brandon Keith Biggs <
> = EMAIL ADDRESS REMOVED = > wrote:
> >
> > I am not sure math ml reads correctly let alone the plane text.
> > The screen reader will just read 22.
> - for one, I'd say there is not just the one screenreader
> - in addition, the screen readers I know have a zillion settings that
> determine how they present content beyond plain character based content
> (e.g. skip punctuation, skip non-Latin characters, etc.)
> - screen readers are just one out of many types of assistive technology,
> please do not always only think about how accessibility might work in
> screen readers
> - and last but not least: are there screen readers that do a good job at
> presenting MathML encoded content? Would that be for just presentation
> MathML or also for Content MathML? Is there are any other type of assistive
> technology that makes use of MathML encoded content to present the content
> or allow a user to interact with it (e.g. navigate the mathematical
> expression, copy specific pieces and carry it over into an equation tool,
> etc.)? I think MathType rom DesignScience is a good option, but when it
> comes to browsers it was tied to earlier versions of Internet Explorer, and
> thus won't work anymore on a typical up to date computer.
>
> Olaf
>
> > > > >