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# SPDX-License-Identifier: GPL-2.0-or-later
# Gauss: Extended Gauss functionality for GAP
#
# Declarations
#
## Declaration stuff for Gauss algorithms on dense (IsMatrix) matrices.
##
DeclareOperation( "EchelonMatTransformationDestructive", #RREF over a ring, returns the same record as SemiEchelonMatTransformation but with ordered vectors
[ IsMatrix ] );
DeclareAttribute( "EchelonMatTransformation",
IsMatrix );
##
DeclareOperation( "EchelonMatDestructive", #RREF over a ring, returns the same record as SemiEchelonMat but with ordered vectors
[ IsMatrix ] );
DeclareAttribute( "EchelonMat",
IsMatrix );
##
DeclareOperation( "ReduceMat",
[ IsMatrix, IsMatrix ] );
DeclareOperation( "ReduceMatWithEchelonMat", #Reduce the rows of a matrix with another matrix, which MUST be at least in REF.
[ IsMatrix, IsMatrix ] );
##
DeclareOperation( "ReduceMatTransformation",
[ IsMatrix, IsMatrix ] );
DeclareOperation( "ReduceMatWithEchelonMatTransformation", #same as above, with transformation matrix.
[ IsMatrix, IsMatrix ] );
##
DeclareOperation( "KernelEchelonMatDestructive", #REF over a ring, returns a record with relations (list: certain columns of relations) as only entry
[ IsMatrix, IsList ] );
DeclareGlobalFunction( "KernelMat" );
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