CPPLapack Code

The return object type of inverse functions for symmetric matrices was chenged.

2D vector and matrix classes were added.

*add a few missing functions.
*update contribution functions for subspace iteration.

add the simplest Subspace contribution function

data storage of dgematrix_small was changed.

Files for small classes were organized.

update dquater

update dquater.hpp

quaternion class named dquater was added.
dquater is just a typedef of dcovector_small<4>.

typedef(s) for dcovec3, drovec3, dgemat3, and dsymat3 were added.