Quote:> Is there any .m file that can compute the Hankel function for the

> negative order? I find some suite by Mathworks but it need to change the

> specfun toolbox. Because I am using matlab in Unix, I have no previliege

> to do that. If you have any information, please tell me as soon as

> possible. Thanks

Hi.

Doing this well in a .mfile is a very big job. You are better off using

the Bessel function suite from our FTP suite, which you already have.

You do not have to put the new Bessel functions in the toolbox/matlab/specfun

directory. You can put them in a directory that belongs to you if you

arrange to have that directory name ahead of specfun on your MATLAB path.

Or, just work in the directory that contains the new functions.

-- Cleve Moler