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IncompleteGamma

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Function Description

The incomplete gamma function,  is defined as:

 

 

Here  is the gamma function.

 

If  then the website evaluates the incomplete gamma function using the following power series expansion:

 

 

If  then the website evaluates the function using the following continued fraction:

 

 


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Output type / Parameter details

Output type: Double
Parameter NameVariable TypeDescription
aDoubleInput value
xDoubleInput value (upper bound for integral)

Links to:

-          Interactively run function

-          Interactive instructions

-          Example calculation

-          Output type / Parameter details

-          Illustrative spreadsheet

-          Other Special Functions

-          Computation units used


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