# scipy.signal.cmplx_sort

scipy.signal.cmplx_sort(p)

  Sort roots based on magnitude.

  Parameters
    p array_like

      The roots to sort, as a 1-D array.

  Returns
    p_sorted ndarray

      Sorted roots.

    indx ndarray

      Array of indices needed to sort the input p.

  Examples

      >>> from scipy import signal
      >>> vals = [1, 4, 1+1.j, 3]
      >>> p_sorted, indx = signal.cmplx_sort(vals)
      >>> p_sorted
      array([1.+0.j, 1.+1.j, 3.+0.j, 4.+0.j])
      >>> indx
      array([0, 2, 3, 1])

scipy.signal.cheb2ap scipy.signal.ellipap