Engineering - BESSELI Function
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Description
The BESSELI function returns the modified Bessel function In (x), which is equivalent to the Bessel function evaluated for purely imaginary arguments.
Syntax
BESSELI(X, N)
Arguments
Argument | Description | Required/ Optional |
---|---|---|
X | The value at which to evaluate the function. | Required |
N | The order of the Bessel function. If n is not an integer, it is truncated. | Required |
Notes
- If x is nonnumeric, BESSELI returns the #VALUE! Error value.
- If n is nonnumeric, BESSELI returns the #VALUE! Error value.
- If n < 0, BESSELI returns the #NUM! Error value.
- The n-th order modified Bessel function of the variable x is −
$$I_n(x) = (i)^{-n}J_n(ix)$$
Applicability
Excel 2007, Excel 2010, Excel 2013, Excel 2016
Example
advanced_excel_engineering_functions.htm
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