The thing Jim Dunleavy is talking about is LaTeX, a text-based language used by LOTS of people in math and science to generate equations and to do other kinds of formatting / typesetting. Just guessing, the way Alt text would work is for the Alt text / label to be the actual LaTeX code that produces the different figures. A reader needs to understand the LaTeX code in order to parse out what symbols are involved, but typically someone working in the field might know that anyway from writing the code to produce their own equations. The sighted user just sees whatever figure is created by the LaTeX code and is indifferent to the code. As for whether or not everything on Wikipedia follows a given convention, I assume that is greatly to be hoped for but not guaranteed, just due to the nature of Wikipedia. Probably I could do some actual testing/ research to verify these points, but perhaps this is enough to help you get started. DoreneC Seattle WA On Fri, Nov 21, 2008 at 9:19 AM, Nimer <nimerjaber1@xxxxxxxxx> wrote: > I don't know if it is a language. I see it in electronic textbooks, > computer files, ETC. There are equation editors that are used for the > writing of equations, and I know for sure that Window Eyes, NVDA, and System > Access either have big problems reading them, or do not read them at all. > > Thanks > Nimer J > > Nimer M. Jaber > > The information transmitted is intended only for the person or entity to > which it > is addressed and may contain confidential and/or privileged material. Any > review, > retransmission, dissemination or other use of, or taking of any action in > reliance > upon this information by persons or entities other than the intended > recipient is > prohibited. If you received this in error, please contact the sender via > reply e-mail, and delete the > material from any computer. > > Website: > http://www.empowertheblind.org > Phone: > (720) (251-4530) > > > > > Jerry Richer wrote: > >> I use Wikipedia most every day. A lot of what I look up has equations >> on it. I don't see any alt tagging going on that makes the equations easy >> to read. What is the language they use to write Math on Wikipedia? >> Thanks. >> Jerry >> > __________ > View the list's information and change your settings at > //www.freelists.org/list/programmingblind > >