5.4.1.5 Matrix_rational_sparse Objects

class Matrix_rational_sparse
The Matrix_rational_sparse class derives from Matrix, and defines functionality for sparse matrices over the field $ \mathbf{Q}$ of rational numbers.
Matrix_rational_sparse( parent, [entries=True], [coerce_entries=True], [copy=0])

Instances of class Matrix_rational_sparse have the following methods (in addition to inherited methods and special methods):

charpoly,$  $ hessenberg_form

These methods are defined as follows:

charpoly( )

Return the characteristic polynomial of this matrix.

hessenberg_form( )

Return the Hessenberg form of this sparse matrix.

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