is.zero.blockmatrix

value to be returned in case
  <code>M</code> is not a a <code>blockmatrix</code> object

not.a.blockmatrix

Some elementary matrix algebra tools are implemented to manage
block matrices or partitioned matrix, i.e. "matrix of matrices"
(http://en.wikipedia.org/wiki/Block_matrix). The block matrix is here
defined as a new S3 object. In this package, some methods for "matrix"
object are rewritten for "blockmatrix" object. New methods are implemented.
This package was created to solve equation systems with block matrices for
the analysis of environmental vector time series .
Bugs/comments/questions/collaboration of any kind are warmly welcomed.

is.zero.blockmatrix: is.zero.bolockmatrix

Description

Usage

Arguments

Value