Re: Word Wrapping Mathematical Formulas

I'll have to write out the code. I am really thinking this is more of an
authoring tool transformation. The main idea is to break up an expression
into multiple expressions that will pack as  tightly as line space enables.
An individual can break a very long expression at obvious points like
relational symbols, =, <, >, \leq, \geq, \neq etc. This should suffice, but
there are also higher precedence operators like +, -, | for extremely long
expressions. I'll code some expressions in LaTeX and MathML this week and
post them next week.
Best, Wayne

On Wed, Jul 5, 2023 at 8:19 AM Michael Gower <michael.gower@ca.ibm.com>
wrote:

> If a formula is presented as a contiguous string of numbers and symbols
> with no spaces, then doesn’t your desire for no scrolling entirely depend
> on the hyphenation rules for formula within whatever user agent is being
> employed?
>
> For instance, here’s an excel formula (no unusual math symbols involved).
>
>
> =SUM(SUMIFS(D$3:D$28,B$3:B$28,D42)+SUMIFS(E$3:E$28,B$3:B$28,E42)+SUMIFS(F$3:F$28,B$3:B$28,F42)+SUMIFS(G$3:G$28,B$3:B$28,G42)+SUMIFS(H$3:H$28,B$3:B$28,H42))
>
>
>
> My guess is that almost everyone’s email client is going to display that
> as a single line that is going to require scrolling – and that it would be
> dangerous if this was either wrapped onto two lines with hyphenation (which
> could be mistaken for a minus sign) or without (where if it coincided with
> closing parenthesis, it could seem like the end of the formula).
>
>
>
> So, to me, you are only going to be able to display an entire formula at
> 400%, where the formula in question is shorter than however many characters
> you see on your system within your viewport.
>
>
>
> Maybe it’s different for ‘real’ math’ formula? Didn’t do math past grade
> 12 algebra 😊
>
>
>
> Mike
>
> *From: *Wayne Dick <wayneedick@gmail.com>
> *Date: *Thursday, June 29, 2023 at 12:56 PM
> *To: *W3C WAI ig <w3c-wai-ig@w3.org>
> *Subject: *[EXTERNAL] Word Wrapping Mathematical Formulas
>
> There is a prevalent but incorrect belief that mathematical formulas are
> images. Many web pages depict them as images. But  mathematical  formulas
> are language, albeit 2-dimensional language, but language. Mathematical
> symbols are text. Thus
>
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> There is a prevalent but incorrect belief that mathematical formulas are
> images. Many web pages depict them as images. But  mathematical  formulas
> are language, albeit 2-dimensional language, but language. Mathematical
> symbols are text. Thus a page that allows mathematics to  run off  the
> screen should be cited  as an example of  an SC 1.4.10 failure. It is not
> an image exception. There are numerous places where line breaks can be
> inserted. For example the symbols =, < are > that occur on the main line of
> a formula are clear examples. The guide should be that whenever possible a
> person should be able to see an entire formula at  400%. Formulas are
> difficult enough without having to horizontally scroll to see them. It is
> really difficult.
>
> Best, Wayne
>