Evaluates the incomplete gamma function for any real number x and the positive real number a as defined by the following for a > 0.
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x is any real number. |
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a is a positive real number. |
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incomplete gamma (a,x) is the result of the calculation of P(a,x) for the given values of a and x. |
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error returns any error or warning condition from the VI. |
The integral in the definition of P(a, x) can approximately be derived by the following equation.
The following diagram shows the incomplete gamma functions with a = 1, 2, 3, and 4 from top to bottom.