Xnetlib is an X interface to Netlib and the Na-Net Whitepages. It provides easy access to a large body of numerical software that is freely available, 24 hours a day, via an electronic service called Netlib.
In addition to LAPACK and LINPACK, there are dozens of other libraries, technical reports on various parallel computers and software, test data, facilities to automatically translate FORTRAN programs to C, bibliographies, names and addresses of scientists and mathematicians, and so on.
Netlib may also be accessed by email, using the address email@example.com, or firstname.lastname@example.org, with messages in the form send subroutine_name from library_name, and send index for library_name. The message will be automatically read and the corresponding subroutine mailed back.
The Xnetlib interface lets one point and click on subroutines, which are then automatically transferred back into the user's directory. There are also index search features to help find the appropriate subroutine. Xnetlib can be obtained by sending the message send xnetlib.shar from xnetlib to email@example.com.