# Problems with texvc Latex -- Help!

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## Problems with texvc Latex -- Help!

 Hi, Sorry to bother you guys here. I spent a whole day trying to enable Latex rendering in wiki. But failed... I checked almost everything as folows. 1. texvc in the wiki_installation_path/math directory DOES work from the command line, but not from PHP. 2. I checked the permission, the webserver has write permission on wiki_installation_path/images wiki_installation_path/images/math wiki_installation_path/images/tmp 3. File upload has no problem. 4. When I write $\sqrt{10}$ and click the Save button, I got the following error msg Failed to parse (unknown error/math/texvc '/afs/edu/users/roy/pub/www/wiki/images/tmp' '/afs/edu/users/roy/pub/www/wiki/images/math' ' \sqrt{10} ' 'utf-8'): \sqrt{10} I think this error msg is generated by the following line from wiki_installation_path\includes\Math.php.  return "$mf ($errmsg$append):$source \n"; ----------------------------------------------------------------------------- Here are what I observed. 1. In the Math.php file (source code can be found at http://wikipedia.sourceforge.net/doc//__filesource/fsource_MediaWiki__includesMath.php.html), there is a command $contents = $cmd; Is this correct?  Should it be $contents =$cmd; ? It seems that $cmd contains nothing. 2. If I change$contents = $cmd; to$contents = $cmd; I will get the same error msg. However, in this case, I checked the variable$cmd = ./math/texvc '/afs/edu/users/roy/pub/www/wiki/images/tmp' '/afs/edu/users/roy/pub/www/wiki/images/math' ' \sqrt{10} ' 'utf-8' $contents is the same as$cmd $retval = . Now it seems that the unknown error results from the condition check of$retval. How could this happen? What does variable \$retval in Math.php acutally mean? Any help is much appreciated! Best, Roy _______________________________________________ MediaWiki-l mailing list [hidden email] http://mail.wikipedia.org/mailman/listinfo/mediawiki-l