Dima Pasechnik wrote:
> but it looks as if it might be a coercion problem.
> Any ideas where to look?
Not really, but it does look like the common parent
discovered by the coercion system is incorrect:
sage: import numpy as np
sage: a = np.float('1.5')
sage: b = np.float32('1.5')
sage: get_coercion_model().common_parent(b, polygen(RR))
Univariate Polynomial Ring in x over Real Field with 53 bits of
precision
sage: RR.coerce(a)
1.50000000000000
sage: RR.coerce(b)
...
TypeError: no canonical coercion from <type 'numpy.float32'> to Real
Field with 53 bits of precision
sage: get_coercion_model().common_parent(b, RR)
<type 'numpy.float32'>
--
Marc
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