No evaluation with gamma of ball/interval field arguments

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Incomplete gamma doesn't do anything given ball arguments

sage: gamma(2, RBF(1/3))
gamma(2, [0.3333333333333333 +/- 7.04e-17])
sage: gamma(2., RBF(1/3))
gamma(2.00000000000000, [0.3333333333333333 +/- 7.04e-17])
sage: gamma(2, RIF(1/3))
gamma(2, 0.3333333333333334?)

Component: symbolics

Issue created by migration from https://trac.sagemath.org/ticket/22873

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Branch: u/rws/no_evaluation_with_gamma_of_ball_arguments

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Commit: 270ade9

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Description changed:

--- 
+++ 
@@ -5,5 +5,7 @@
 gamma(2, [0.3333333333333333 +/- 7.04e-17])
 sage: gamma(2., RBF(1/3))
 gamma(2.00000000000000, [0.3333333333333333 +/- 7.04e-17])
+sage: gamma(2, RIF(1/3))
+gamma(2, 0.3333333333333334?)
 ```
 

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New commits:

270ade9

22873: first attempt

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comment:3

It's not use making a GinacFunction out of this so a Python solution should do.

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Changed commit from 270ade9 to none

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Changed branch from u/rws/no_evaluation_with_gamma_of_ball_arguments to none