# scipy.special.ynp_zeros

scipy.special.ynp_zeros(n, nt)

  Compute zeros of integer-order Bessel function derivatives Yn’(x).

  Compute nt zeros of the functions \(Y_n'(x)\) on the interval \((0, \infty)\). The zeros are returned in ascending order.

  Parameters
    n int

      Order of Bessel function

    nt int

      Number of zeros to return

  See also

  `yvp`

  References

  1

    Zhang, Shanjie and Jin, Jianming. “Computation of Special Functions”, John Wiley and Sons, 1996, chapter 5. https://people.sc.fsu.edu/~jburkardt/f_src/special_functions/special_functions.html

  Examples

      >>> import scipy.special as sc

  We can check that we are getting approximations of the zeros by evaluating them with `yvp`.

      >>> n = 2
      >>> x = sc.ynp_zeros(n, 3)
      >>> x
      array([ 5.00258293,  8.3507247 , 11.57419547])
      >>> sc.yvp(n, x)
      array([ 2.22044605e-16, -3.33066907e-16,  2.94902991e-16])

scipy.special.yn_zeros scipy.special.y0_zeros