Last modified: 2012-07-26 18:58:19 UTC
When f' in a Wiki-TeX formula is rendered as HTML, it is virtually indistiguishable from a simple f. Possible solution: render all formulas using primes as PNG. Example: <math>f^{(1)}=f',f^{(0)}=f</math>
That will depend upon how your browser processes something like <i>f</i>', alot of things are potentially ambiguous in HTML mode such as i and l. Marking this is INVALID.
Of course, this bug depends on browser specifics. (I can confirm the bug for Mozilla and Konqueror.) But if some HTML construction does not work reliably, it should not be used. There have been several complaints concerning this problem on de:, most recently on [[:de:WP:RVW#Differentialrechnung]]. Currently, ugly workarounds like f\,' and f'\, are used in [[:de:Differentialrechnung]].
Can you provide screen shots of expected and actual rendering?
Created attachment 567 [details] screenshot (from Konqueror) showing several possibilities to typeset "f-prime" lines: 1. f without prime, for comparison (the complicated formula is used to avoid the rendering as an upright plain-text f) 2. TeX rendered as HTML, virtually indistinguishable from 1. 3. TeX forcibly rendered as PNG 4. not quite 5. this looks fine Mozilla output does not differ much from this image.
Solved by Mathjax.