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6.3.14 Upper incomplete γ function

The upper incomplete γ function is defined by

Γ(a,b)=
+∞


b
etta−1dt. 

The ugamma command computes the upper incomplete γ function.

Examples

ugamma(3.0,2.0)
     
1.35335283237           
ugamma(-1.3,2)
     
0.0142127568837           

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