\operatorname{<foo>}^{x} displays incorrectly
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dpvc
There appears to be a bug regarding raising \operatorname{<foo>} to a power. In the case of \operatorname{tan}^{2} the 2 was placed just above the 'a' in tan. Tested on Linux (Konqueror 4.1, image fonts) and Safari 3.2.1 with the jsMath fonts and Firefox 3.0 on OS X with the jsMath fonts.
AMSmath extension that includes fixed \operatorname macro
You are right, the AMSmath extension didn't handle \operatorname properly in displayed-math mode. I have fixed it and will include the patch in the next release of jsMath. In the meantime, I have attached a patched version of the extension. Replace the AMSmath.js file in the jsMath/extensions folder with this one.
Thanks for reporting the problem.
Davide
File Added: patch-2008-12-23.zip