Hello to everybody!
I have a problem with Bessel funtion.
Can I say that Jo^2(x)=Jo(x)*Jo(x)
However it's a notation to be deprecated as it allows ambiguous notation since we also have:
$\displaystyle J_{\mu} ^2 (x) = J_{\mu} (J_{\mu} (x)) $
to be encouraged is:
$\displaystyle (J_{\mu} (x))^2 = J_{\mu} (x) J_{\mu}(x)$
The same goes for sin, also I don't like the usage $\displaystyle \sin x$ rather than $\displaystyle \sin (x)$
RonL