Description Computes the value of the nth order Bessel function of the first kind evaluated at x.
Syntax BESSELJ ( number, order)
| Argument | Description |
|---|---|
| number | Any real number x at which to evaluate the function. |
| order | Any positive whole number or 0. Values are truncated to integers. |
Equations
where 
Examples This function returns 0.497094103:
BESSELJ(2.5,1)
See Also BESSELI, BESSELK, BESSELY
