It behaves the same on 7.4.beta2.

Vincent

On 01/09/16 18:36, Liang wrote:
I'm using Sage 6.10. The following code would raise an error:

var('x')

y=gamma(-1,x)
y._sympy_()


Error:

TypeError: gamma takes exactly 1 argument (2 given)



Apparently sympy defined upper and lower incomplete gamma function. The
sage to sympy conversion of gamma function tried to convert the incomplete
gamma function of sage to the gamma function of sympy.


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