Solving Large Overdetermined Systems
- To: mathgroup at smc.vnet.net
- Subject: [mg88599] Solving Large Overdetermined Systems
- From: Hauke Reddmann <fc3a501 at uni-hamburg.de>
- Date: Fri, 9 May 2008 03:26:41 -0400 (EDT)
My equation system consists (at the moment - by taking
all linear combinations, the cubics surely can be pruned too)
of 18 quadratics and 360 cubics in 15 variables.
Solve[] is out of question, for NSolve[] it's still
too large (not mentioning that there are some
1-parametric solutions), so I turned to FindRoot[] -
one found "random" solution would already be very revealing.
But alas, FindRoot[] needs #eq=#var. Bummer. (Of course I
can take 15 random equations and plug the solution back
in, but the probability of 378 zeroes is zero...)
Any other idea what I could try?
--
Hauke Reddmann <:-EX8 fc3a501 at uni-hamburg.de
Er-a svo gott sem gott kveða
öl alda sonum, því að færra veit
er fleira drekkur síns til geðs gumi.