Matrix Inversion Woes

So after thinking I had fixed the problems menthioned in the powerpoint there were still remaining differences.... So on Dave's suggestion made the track errors simple and constant per track. Fortran responds as expected and C++ doesn't bat an eyelid. Alarm bells galore! Find a typo in the new matrix inversion code I had written, doh. Fixing that makes my new routine hit the computational precision wall again. Thinking about it I should just convert to microns and see if dealing with numbers of order unity will work.

Down in the lab the GPIB card I scavenged refuses to work with XP. But as Brian has taken the chip away this is somewhat academic. But as the labview test code is half written I should try and find a driver.