Jn (FPScript)
Calculates the Bessel function of the first kind with the order specified.
Syntax
Jn(n, Number)
The syntax of the Jn function consists of the following parts:
Part |
Description |
|---|---|
n |
The order. Permitted data structures are scalar value. All integral data types are permitted. The value must be greater or equal to 0. If the argument is a list, then the first element in the list is taken. If this is also a list, then the process is repeated. |
Number |
The argument for the function. All data structures are allowed. All numeric data types are permitted. For complex data types the absolute value is formed. If the argument is a list, then the function is executed for each element of the list and the result is also a list. |
Remarks
The data type of the result is always 64-bit floating point.
The structure of the result corresponds to that of the argument Number. The calculation is done element-by-element where appropriate.
The result has the unit 1, if Number has a unit. Otherwise, it has no unit.
For aggregate data structures, only the Y component is calculated.
The following illustration shows the course of the function for the orders 0 to 4 within the interval [-40, 40]:
Available in
FlexPro Basic, Professional, Developer Suite
Examples
Jn(2, 0) |
Results in 0. |
Dim x |
Calculates a signal with the course of the function of the order 2 within the interval [-40, 40]. |