Calculates the gamma function of the input variable.

x—The expression for which the gamma function will be evaluated. x must evaluate to < 34.5; otherwise, a floating-point over-flow will result.

result—The gamma function of x. The result is floating-point, regardless of the data type for x.

None.

The gamma function can be used in a variety of applications; one example is to solve nonlinear flow problems, such as the creep of metals.

GAMMA is defined as:

The gamma function has the following properties:

A special value of the gamma function occurs when x = 1/2:

ERRORF,   GAUSSINT