Illegal instruction or undefined symbol from import

[Nick Maclaren]

In article <llMqg.690$RG3.13402 at se2-cb104-9.zrh1.ch.colt.net>,
Mathias Waack <M.Waack at gmx.de> writes:
|> 
|> > There's 
|> > a lot of somewhat obscure mathematical stuff that got into the standard
|> > C lib. How often do you need Bessel functions?
|> 
|> Maybe each day. What is a Bessel function?;)

Some people use them all the time; there are specific physical problems 
where they are fundamental.  I have never used them, in 40 years of
wide-ranging experience in the scientific computing arena!  


Regards,
Nick Maclaren.