This can be done in maxima:
genmatrix(lambda([i,j],i-j),6,6);
for example. But is there an easy Sage way of doing this? If I enter
sage: M=maxima('genmatrix(lambda([i,j],i-j),6,6)')
then I obtain a Maxima matrix, which then has to turned into a Sage
matrix (I don't know how to do this either). Clearly I could:
sage: M=matrix(ZZ,6,6)
sage: for i in range(6):
....: for j in range(6):
....: M[i,j]=i-j
but that seems a bit longwinded. Is there an easy straightforward
way?
Thanks,
Alasdair
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