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TopicAliasing_mult2.cpp
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MatrixXf
matA
(
2
,
2
),
matB
(
2
,
2
);
matA
<<
2
,
0
,
0
,
2
;
// Simple but not quite as efficient
matB
=
matA
*
matA
;
cout
<<
matB
<<
endl
<<
endl
;
// More complicated but also more efficient
matB
.
noalias
()
=
matA
*
matA
;
cout
<<
matB
;