Functions > Special Functions > Bessel Functions > Hankel Functions
  
Hankel Functions
H1(m, z)—Returns the Hankel function (Bessel function of the third kind) of the first kind.
H2(m, z)—Returns the Hankel function of the second kind.
The H1 scaled version has a scale factor of e−(z ·1i), while the H2 scaled version has a scale factor of e(z · 1i). Type sc as a literal subscript after the function name to specify the scaled function H1sc(m,z).
These functions, and their scaled versions, can be evaluated both numerically and symbolically.
Arguments
m is a real number or vector.
z is a dimensionless complex scalar or vector, z ≠ 0.
If both m and z are vectors, then they must be of equal lengths.