Sat Jan 20 00:08:18 2007  Jiri (George) Lebl <jirka@5z.com>

	* lib/linear_algebra/linear_algebra.gel: Fix spelling, it's
	  RayleighQuotient

	* lib/linear_algebra/linear_algebra.gel,
	  lib/equation_solving/formulas.gel:  Fixup CubicFormula to work
	  correctly with complex coefficients and implement Eigenvalues
	  for 3 by 3 matrices.

	* help/C/gel-function-list.xml, help/C/genius.xml: add a bunch of
	  documentation to the function list and Planetmath and Mathworld
	  links.

	* src/geniustests.txt, src/longtest.gel: add tests

	* add missing files to subversion


svn path=/trunk/; revision=515