Collaboration diagram for Generalized eig computational routines:

Modules
	ggbal: balance matrix

	gghrd: reduction to Hessenberg

	gghd3: reduction to Hessenberg, level 3

	hgeqz: generalized Hessenberg eig

	ggbak: back-transform eigvec

	tgsen: reorder generalized Schur form

	tgsna: reciprocal cond est

	tgsyl: Sylvester equation

	tgsy2: Sylvester equation panel (?)

	{un,or}m22: multiply by banded Q, step in gghd3

	lagv2: 2x2 generalized Schur factor

	tgevc: eigvec of pair of matrices

	tgexc: reorder generalized Schur form

	tgex2: reorder generalized Schur form

Modules

Detailed Description