 Incomplete Bessel K function/generalized incomplete gamma function

The Incomplete Bessel K function and the generalized incomplete gamma function are specialized mathematical functions that arise in various fields including physics, engineering, and statistics. Let's break them down individually. ### Incomplete Bessel K Function The Incomplete Bessel K function, often denoted as \( K_\nu(x, a) \), is a variant of the modified Bessel function of the second kind, \( K_\nu(x) \).