BESSELI
Returns the modified Bessel function In(x).
Syntax
expression.BESSELI(arg1, arg2);
expression - A variable that represents a ApiWorksheetFunction class.
Parameters
| Name | Required/Optional | Data type | Default | Description |
|---|---|---|---|---|
| arg1 | Required | ApiRange | ApiName | number | The value at which to evaluate the function. | |
| arg2 | Required | ApiRange | ApiName | number | The order of the Bessel function. |
Returns
number
Example
Compute the modified Bessel function of the first kind for a given value and order in a spreadsheet.
// Evaluate the modified Bessel function I at a specific order in a spreadsheet.
// Calculate an engineering Bessel value used in wave and heat-diffusion problems in a spreadsheet.
let worksheet = Api.GetActiveSheet();
let func = Api.WorksheetFunction;
worksheet.GetRange("A1").SetValue(func.BESSELI(3.5, 1));