why is most mathematical online-information only available in .ps or .dvi encrypted format ???
I assume , that .ps can handle pictures , greek letters , integral symbol etc. , but there are usually ways to do this in ASCII as well , with only small decrease of readability.
Most .ps files could also be written in text format , but unfortunately text versions are usually not made available. e.g. the sci.math posts here come in .txt format. I've never seen .ps versions of sci.math posts attached , so it seems possible to do it in .txt.
- .ps files cannot be searched for keywords. - .ps files cannot be viewed online (AFAIK) - it's difficult to download and install the (huge and complicated) .ps-viewing software. - .ps files are much larger , which is bad for downloading and archiving. - printing .ps files takes much longer on many printers (I still don't know, how to print them in suitable format on my printer) - good conversion software ps-->txt is not available AFAIK
it seems to me , that mathematicians use .ps as an attribute of elitist behaviour ; to make it difficult for outsiders to enter their domain. The same reason , why doctors speak latin , lawers juristic-chinese etc. It somehow shall make them appear competent to non-.ps-speakers , but it's counterproductive for science concerns.
What we need is a good,free .ps-->.txt conversion software , and more mathematicians who are willing to provide their papers in .txt format. They can still provide them in .ps format too , if they really want. But .txt should be the standard.