====== Qxx ======

###
The xx component of $Q$ is defined as:
\begin{equation}
Q_{xx} = 3x^2/r^2 - 1.
\end{equation}
The equivalent operator in Quanty is created by:
<code Quanty Example.Quanty>
OppQxx = NewOperator("Qxx", NF, IndexUp, IndexDn)
</code>
The operator could also be defined by:
<code Quanty Example.Quanty>
Akm={{2,-2,sqrt(1.5)},{2, 2,sqrt(1.5)},{2,0,-1}}
OppQxx=NewOperator("CF",NF,indexup,indexdn,Akm)
</code>
###



===== Table of contents =====
{{indexmenu>.#1}}