> ... and since you wanted a matrix of *numbers* out of m, you may do
> sage: m(1.,2.)
Oops, i just see that your original example was x=pi/2, y=pi. That is
fine:
sage: m(pi/2,pi)
[0 0]
[0 0]
and is of course better than going via RR:
sage: m(RR(pi/2),RR(pi))
[ 6.12323399573676e-17 0]
[ 0 -1.224646799147353e-16]
Cheers
Simon
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