BesselK• BesselK[n, z] gives the modified Bessel function of the second kind  . •  satisfies the differential equation  .
• BesselK[n, z] can be input as  .
• See also: BesselJ.
 Examples Using InstantCalculatorsHere is the InstantCalculator for the BesselK function. Enter the parameters for your calculation and click Calculate to see the result.
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Entering Commands DirectlyYou can paste a template for this command via the Text Input button on the BesselK Function Controller. This is the value of  .
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This is a plot of  ,  ,  for x from 0 to 10.
This is the derivative of  .
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Ordinary Mathematical NotationThis also gives the derivative of  .
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