This function calculates the modified Bessel function of the first kind evaluated for purely imaginary arguments.
Syntax
BESSELI(value,order)
Arguments
This function has these arguments:
| Argument | Description |
|---|---|
| value | Value at which to evaluate the function |
| order | Number representing the order of the function; if it is not an integer, it is truncated |
Remarks
If value or order is nonnumeric then a #Value! error is returned. If order is less than 0 then the #NUM! error is returned.
Data Types
Accepts numeric data for both arguments. Returns numeric data.
Examples
BESSELI(A4,D5)
BESSELI(R4C1,R5C4)
BESSELI(1.8,2) gives the result 0.5260402117
Version Available
This function is available in product version 1.0 or later.
See Also
BESSELJ | BESSELY | Engineering Functions