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Mathematica > Mathematics and Algorithms > Mathematical Functions > Special Functions > Bessel-Related Functions >

HankelH1

HankelH1[n, z]
gives the Hankel function of the first kind .
  • Mathematical function, suitable for both symbolic and numerical manipulation.
  • is given by J_n(z)+iY_n(z).
  • HankelH1[n, z] has a branch cut discontinuity in the complex z plane running from -infty to 0.
  • For certain special arguments, HankelH1 automatically evaluates to exact values.
  • HankelH1 can be evaluated to arbitrary numerical precision.
  • HankelH1 automatically threads over lists.
Evaluate numerically:
Plot the absolute value of for various orders:
Series at the origin:
Series at infinity:
Evaluate numerically:
In[1]:=
Click for copyable input
Out[1]=
 
Plot the absolute value of for various orders:
In[1]:=
Click for copyable input
Out[1]=
 
Series at the origin:
In[1]:=
Click for copyable input
Out[1]=
Series at infinity:
In[2]:=
Click for copyable input
Out[2]=
Evaluate for complex arguments and orders:
Evaluate numerically to high precision:
The precision of the output tracks the precision of the input:
HankelH1 threads element-wise over lists:
TraditionalForm formatting:
HankelH1 can be applied to a power series:
Find series expansions at infinity:
Use FunctionExpand to convert to Bessel functions:
Integrate expressions with HankelH1:
HankelH1 does not automatically evaluate symbolically for half-integer arguments:
Use FunctionExpand to obtain an expanded form:
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