This revision https://en.wikipedia.org/w/index.php?title=Courant_minimax_principle&oldid=663685200

causes a MWException crashing the whole page view. The offending latex is

: <math>\lambda_k=\min\limits_C\max\limits_{\binom{\| x\| =1}{Cx=0}}\langle Ax,x\rangle,</math>

It appears to only occur in the MathML with SVG fallback mode. It occurs for me on Chrome, and it seems to hang in firefox.

This has been mentioned at https://en.wikipedia.org/wiki/Wikipedia_talk:WikiProject_Mathematics#MWException_in_maths_expression