[BlindMath] Reading an ascii math formula in nvda

pranav.lal at gmail.com pranav.lal at gmail.com
Sat Nov 20 06:17:44 UTC 2021


Hi Neil,

Yes, that did help and I was able to move around the expression too. Given
my lack of familiarity with this form of rendering though, Jonathan's and
Peter's interpretations have helped me determine what to do and how to
handle the formula. 

I wish there was a way to get a plain language interpretation of these
formulas. 

I said ascii math because that is what the course people told me. If its
LaTEX, fine by me.

Pranav
-----Original Message-----
From: BlindMath <blindmath-bounces at nfbnet.org> On Behalf Of Neil Soiffer via
BlindMath
Sent: Saturday, November 20, 2021 7:17 AM
To: Blind Math list for those interested in mathematics
<blindmath at nfbnet.org>
Cc: Neil Soiffer <soiffer at alum.mit.edu>
Subject: Re: [BlindMath] Reading an ascii math formula in nvda

In a new browser tab, open
https://mathjax.github.io/MathJax-demos-web/input-tex2chtml.html.
This is a MathJaX demo page where you can paste in TeX and get the result
displayed with MathML accessible to AT.
Select the example text in the edit area and replace it with your expression
(which is TeX).
Click "Render TeX"
Move to the focus to the area below and you should be able to hear it and
interact with it. I only tried MathPlayer, but the same is probably true for
acess8math.

Hope this help,

Neil Soiffer

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On Fri, Nov 19, 2021 at 4:43 PM Pranav Lal via BlindMath <
blindmath at nfbnet.org> wrote:

> Hi all,
>
> I need to read the following formula written in ascii math with nvda. 
> I see that math player is not an option. I am not as familiar as I 
> should be with ascii math notation.
> E_d = \sqrt{\frac{\sum_{t=1}^{N}(R_{b,t} - R_{x,t})}{N-1}}
>
>
> For instance, what does \sum_{t=1}  mean? What is being added?
>
> I am using the add-on called access8Math.
>
> I went to http://asciimath.org/  and rendered the above formula. The 
> math content is being displayed but I am unable to navigate amongst 
> different parts of the expression. NVDA is reading  the entire 
> expression as a block of text.
>
> It may be easier for me to just read the above formula as is, so could 
> someone translate it into plain English perhaps?
>
> Note:
> I am doing a course relating to finance which is where the above 
> formula is being used.  The people have not had a blind student before 
> and are happy to help in whatever way they scan.
>
> I am using NVDA version 2021.2.
> Firefox version = 94.0.1 (64-bit)
> Windows version = 21H2 (OS Build 22000.318)
>
> I tried the formula in google chrome. I can hear the rendering too but 
> it sounds different than it does in firefox. Hitting enter on the 
> clickable expression does nothing and I cannot interact with the 
> expression in parts to understand it.
> Google chrome Version 96.0.4664.45 (Official Build) (64-bit) Pranav
>
>
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