On 2015-01-20 17:27, Dan Drake wrote:
On Fri, 16 Jan 2015 at 09:57AM -0800, Pedro Cruz wrote:
An unexpected behaviour in latex() command (both 5.12 and 6.4 Sage
versions):
sage: latex( 120/factorial(5,hold=True) )
\frac{120}{120}
sage: latex( factorial(5,hold=True) )
5!
We need to "hold" the expression for proper latex transcription.
Is there any other way to avoid latex() to compute things?
I don't think so. My understanding is that this comes from the basic
semantics of Python; latex() will only see the integer 120, because
Python evaluates the factorial().
No, Python doesn't evaluate it due to hold=True. Given that str() works
as expected, this really is a bug in latex():
sage: latex(120/factorial(5,hold=True))
\frac{120}{120}
sage: str(120/factorial(5,hold=True))
'120/factorial(5)'
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