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BUILT-IN MATHEMATICA SYMBOL
BesselK
BesselK[n, z]
gives the modified Bessel function of the second kind 
.
Details
- Mathematical function, suitable for both symbolic and numerical manipulation.
satisfies the differential equation 
. - BesselK[n, z] has a branch cut discontinuity in the complex z plane running from
to 
. - FullSimplify and FunctionExpand include transformation rules for BesselK.
- For certain special arguments, BesselK automatically evaluates to exact values.
- BesselK can be evaluated to arbitrary numerical precision.
- BesselK automatically threads over lists.
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