Last modified: 2011-10-14 02:08:04 UTC
The upper case Greek characters that are undefined in plain TeX (such as \Alpha, \Beta, \Epsilon, etc.) are rendered in TeX's math italic font. They should be rendered in an upright ("roman") font to match the other Greek characters (\Gamma, \Delta, etc., which are defined in plain TeX). This affects the function "find" in math/texutil.ml. I don't understand the code well enough to tell whether replacing FONT_RTI with FONT_RM would be sufficient.
Replacing FONT_RTI with FONT_RM would be sufficient. Only FONT_* influence the italicness.
Created attachment 2626 [details] One solution to the bug It's not enough to set it as FONT_RM, it will still be displayed as italics. So instead we change it to use FONT_UF and specify the letter as a \mathrm{}, forcing ams even perhaps it's unnecissary (the main mathrm definition force ams, so to keep is likewise)
Fixed in r17386.
This bug is fixed in texvc, but on the various WMF wikis there incorrect images are cached and cached math images never expire. (See bug #24445).
