Hello,
I'm using Sage and try some months ago to plot a very long expression,
and that fails !
(see http://trac.sagemath.org/sage_trac/ticket/7165)
Today I test with the shorter command, and I get a NotANumber answer
with fast_float used by plot.
sage: var ('m') ; rr = abs (sqrt (m^2-1)) ; real (rr)(m=0.7) ;
0.714142842854285
sage: ff = fast_float (real(rr), m) ; ff (0.7)
nan
Can I tell to Sage to compute with complex values inside plot expressions ?
and fail only if the last result is complex, not real ?
I expect the same result in expression values rr(m=...) and inside a
plot command.
Many thanks.
F.
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