hankel1( n , z )
The Hankel function of the first kind of z in SageMath. Defined in terms of Bessel functions by
\[ H_n(z) = J_n(z) + i Y_n(z) \]Plot of the real part on the real axis:
Plot of the imaginary part on the real axis:
Series expansion about the origin:
Special values:
Related functions: hankel2 bessel_J bessel_Y
Function category: Bessel functions sagemath-docs