Nóta
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Aðgangur að þessari síðu krefst heimildar. Þú getur prófað að breyta skráasöfnum.
Returns the modified Bessel function, which is equivalent to the Bessel function evaluated for purely imaginary arguments.
Syntax
expression.BesselI (Arg1, Arg2)
expression A variable that represents a WorksheetFunction object.
Parameters
| Name | Required/Optional | Data type | Description |
|---|---|---|---|
| Arg1 | Required | Variant | The value at which to evaluate the function. |
| Arg2 | Required | Variant | The order of the Bessel function. If n is not an integer, it is truncated. |
Return value
Double
Remarks
If x is nonnumeric, BesselI returns the #VALUE! error value.
If n is nonnumeric, BesselI generates an error value.
If n < 0, BesselI generates an error value.
The n-th order modified Bessel function of the variable x is 
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