Just a quick shout out to friends and business associates from N.O., including Chris Giordano (director of tennis and sports club at the Hilton D/FW Lakes).  Congratulations on the superbowl win!

Well, this was a really good tournament.  On the mens side, I’m always pleased with a Federer win.  Last year, he seemed to be weighted down with the effort to match Sampras’ slam record.  Running into an inspired performance by Nadal, his serve broke...

The question that generated this topic was very similar to a problem I worked on recently. It deals with the trend of the last few posts on creating simple models that fit data. Suppose we have a parameter, z. It does not make any difference what z...

The previous post dealt with solving three equations in three unknowns, however, one equation was trivial leaving two equations in two unknowns. This problem is similar and my guess is that the person emailing it to me is trying to fit an equation to...

This is a variation on a problem submitted to me recently.  I suspect the original question related to scaling an object moving in a circular, elliptical, or some other path parameterized on an angle that varies between zero and pi.  The scaling is...