Function rgsl::bessel::In_scaled_array

pub fn In_scaled_array(
    nmin: u32, 
    nmax: u32, 
    x: f64, 
    result_array: &mut [f64]
) -> Value

This routine computes the values of the scaled regular cylindrical Bessel functions \exp(-|x|) I_n(x) for n from nmin to nmax inclusive, storing the results in the array result_array. The start of the range nmin must be positive or zero. The values are computed using recurrence relations for efficiency, and therefore may differ slightly from the exact values.