=20 > In addition to PERL, I think GNU Octave and Scilab deserve a mention, > they're free, somewhat documented, and I believe it's Octave whose own >language is supposed to be compatible with MATLAB syntax. >On the other hand, Scilab has a lot of toolboxes, and a SIMULINK style simulator. Another mathematical software offering a wide range of=20 signal integrity applications is Mathcad. For instance, Mathcad can be utilized to compute the impedance for various transmission line geometries (such as microstrip, stripline, and coplanar), to ascertain spectral content of digital signals (via Fourier transform), to evaluate signal quality degradations caused by impedance discontinuities and crosstalk, and to model and simulate high-speed serial links (accounting for channel losses, pre-emphasis and equalization). Four books which describe some of the SI applications of Mathcad are listed below: 1. D. Norte, "Learn Signal Integrity Design Principles With Mathcad", 102 pages. 2. H. Johnson and M. Graham, "High-Speed Digital Design A Handbook Of Black Magic", Pages 409 - 439. 3. D. Brooks, "Signal Integrity Issues and Printed Circuit Board Design", Pages 19 - 21. 4. H. Johnson and M. Graham, 'High-Speed Signal Propagation Advanced Black Magic", Pages 249 - 250. Best Regards, Abe ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu