Module « scipy.special »

Fonction yn_zeros - module scipy.special

Signature de la fonction yn_zeros

def yn_zeros(n, nt) 

Description

yn_zeros.__doc__

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

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

    Parameters
    ----------
    n : int
        Order of Bessel function
    nt : int
        Number of zeros to return

    Returns
    -------
    ndarray
        First `n` zeros of the Bessel function.

    See Also
    --------
    yn, yv

    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 `yn`.

    >>> n = 2
    >>> x = sc.yn_zeros(n, 3)
    >>> x
    array([ 3.38424177,  6.79380751, 10.02347798])
    >>> sc.yn(n, x)
    array([-1.94289029e-16,  8.32667268e-17, -1.52655666e-16])