Thank you,Peter. I have another stupid question that does not related to this topic, I think it difficult to write a matrix as a list of list in Sage.And it is confused that matrix is immutable that I cannot modify the element of a matrix. Is there some smart way to define and use a matrix in Sage? Thanks again.
Peter Bruin <p.br...@warwick.ac.uk>提到： >Hello, > >> I want to use FiniteDimensionalAlgebra to check if a given table of >> multiplicayion can form a associative algebra. But the function >> FiniteDimensionalAlgebra do not check for association. > >A FiniteDimensionalAlgebra can be very general: any finite-dimensional >vector space A equipped with a bilinear map A x A -> A is regarded as a >finite-dimensional algebra. You can use methods like is_associative() >to check if your algebra has certain properties: > >sage: A = >FiniteDimensionalAlgebra(CC,[Matrix([[1,1],[1,0]]),Matrix([[0,1],[1,1]])]) >sage: A.is_associative() >False >sage: A.is_commutative() >False >sage: A.is_unitary() >False > >Peter > >-- >You received this message because you are subscribed to the Google Groups >"sage-devel" group. >To unsubscribe from this group and stop receiving emails from it, send an >email to sage-devel+unsubscr...@googlegroups.com. >To post to this group, send email to sage-devel@googlegroups.com. >Visit this group at http://groups.google.com/group/sage-devel. >For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
