
Math Cocktail
IntervalComputations
General Info

The Bessel functions Bessel functions arise in solving differential equations for systems with cylindrical symmetry. J_{ν}(x) is often called the Bessel function of the first kind, or simply the Bessel function. Y_{ν}(x) is referred to as the Bessel function of the second kind, the Weber function, or the Neumann function (denoted N_{ν}(x)). Exact solutions to many partial differential equations can be expressed as infinite sums over the zeros of some Bessel function or functions. 
