tex bug and tex output for elliptic functions

>>>>> "Richard" == Richard Fateman <fateman@cs.berkeley.edu> writes:

    Richard> Probably you don't want the result to be $sn(u,m)$  which will look
    Richard> like you are typesetting s*n(u,m).  Maybe ${\rm sn}(u,m)$  ?

Yeah, that was a typo.

    Richard> It may be possible to get the _ explicitly if you do   $Jacobi\_Sn$

I'll poke around mactex and see where to fix this.

    Richard> The way to appeal to standards is to look at the dlmf web site, where
    Richard> NIST is coming up with a digital version of the previous standard
    Richard> (Abramowitz and Stegun) for notation. http://dlmf.nist.gov/

Is there anything there? I just get blank pages for the most part.  I
chose the tex functions by the names given in A&S.

Ray