![](https://secure.gravatar.com/avatar/7885cf9b6111344a62a77b00b1561364.jpg?s=120&d=mm&r=g)
23 Sep
2013
23 Sep
'13
9:55 a.m.
Hi, \sqrt[12]{a^{11}} produces me: \sqrt[1]{2} a^{11} What happens there? Xan.