The only use I now for them is when you need to plot the sine of a sine. Or possibly to calculate the frequency spectrum of this.
Ie x = a.sin( b.sin( y ) ) This is fundamental to Frequency Modulation. I don't know if they apply anywhere else ? Unhelpfully, Richard. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nick Maclaren Sent: 05 July 2006 11:32 To: python-list@python.org Subject: Re: Illegal instruction or undefined symbol from import In article <[EMAIL PROTECTED]>, Mathias Waack <[EMAIL PROTECTED]> 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. -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list