I am have been looking into the many errors reported in trac #6318
(http://trac.sagemath.org/sage_trac/ticket/6318). Most seem to be due
to only one problem, namely passing Sage symbolic expressions. This
has been mentioned elsewhere:
http://groups.google.com/group/sage-devel/browse_thread/thread/7e3b729d6bb58a36#
A fricas specific thing seems to cause two errors. The returned type
is different in fricas than from axiom in some cases.
example 1:
sage: a = axiom('Fraction Integer')
sage: print a
Fraction Integer
sage: b = fricas('Fraction Integer')
sage: print b
Fraction(Integer)
When the type is one word like 'Integer' they give the same string.
example 2:
sage: two = fricas(2)
sage: two.comma(3)
[2,3]
sage: two.comma(3,4)
[2,3,4]
sage: _.type()
Tuple(PositiveInteger) <======== expected result is Tuple
PositiveInteger
There is a specific line in the type() method of
axiom.PanAxiomElement that evaluates self.name() and receives a string
from axiom or fricas which contains the type information. I am
guessing that it is also used to make the print string. The change
breaks the tests. Is the change intentional or accidental? Someone
from fricas will have to say.
I hope this helps.
Cheers,
Adam
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