ngamma

Ngamma is not a single, universally defined mathematical function. In literature and software, ngamma is used as a name for various constructs, and its precise meaning depends on context and the author. Because there is no standard definition, ngamma should be interpreted from its source.

In programming and software libraries, ngamma often appears as a function or module name. It may implement a gamma-related computation or serve as an alias or wrapper around a known gamma-type function. When encountered, one should consult the corresponding API or source code to determine its behavior, input parameters, and numeric conventions.

In mathematics or statistics, ngamma may be used informally to denote a family of gamma-related objects parameterized by an integer, such as a generalized gamma function, an iterated gamma construction, or a variant associated with a specific normalization. However, because these are not standardized, different papers or programs may assign different definitions to ngamma.

For reliable interpretation, identify how ngamma is defined in the given context and compare it with standard gamma-related functions such as the gamma function Γ(z), the lower incomplete gamma γ(s, x), the upper incomplete gamma Γ(s, x), and the regularized forms P(s, x) and Q(s, x).

In summary, ngamma is a contextual label rather than a fixed mathematical object; its exact meaning must be drawn from the defining source.