FTP, identify these functions created by the 19th century German astronomer and mathematician that first determined the parallax of a fixed star.
Those of the first kind are solved using a series solution known as the Frobenius method. They can be used to determine the distribution and flow of heat and electricity through a circular cylinder. Those of the second kind are also known as Neumann or Weber functions and complex solutions give rise to Hankel functions, which are also known as the third kind of these functions, and can be used in problems concerning wave theory and hydrodynamics. FTP, identify these functions created by the 19th century German astronomer and mathematician that first determined the parallax of a fixed star.
Those of the first kind are solved using a series solution known as the Frobenius method.
{Bessel} functions