Assumption that n is positive integer

asked 2016-04-22 04:52:02 -0600

Kofi gravatar image

I wrote

assume(n, 'integer')
assume(n>0)
assumptions()

Sage gave back

[n is integer, n > 0]

Yet the command

n.is_integer()

returned false. Also, the assumptions were not used in later computations. For example

gamma(-n)

did not return infinity.

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Comments

Take a look at this question: http://ask.sagemath.org/question/9465...

paulmasson gravatar imagepaulmasson ( 2016-04-22 23:29:53 -0600 )edit