part, the return value
    for that element is True.

    Parameters
    ----------
    x : array_like
        Input array.

    Returns
    -------
    out : ndarray, bool
        Boolean array of same shape as `x`.

    Notes
    -----
    `isreal` may behave unexpectedly for string or object arrays (see examples)

    See Also
    --------
    iscomplex
    isrealobj : Return True if x is not a complex type.

    Examples
    --------
    >>> a = np.array([1+1j, 1+0j, 4.5, 3, 2, 2j], dtype=complex)
    >>> np.isreal(a)
    array([False,  True,  True,  True,  True, False])

    The function does not work on string arrays.

    >>> a = np.array([2j, "a"], dtype="U")
    >>> np.isreal(a)  # Warns about non-elementwise comparison
    False

    Returns True for all elements in input array of ``dtype=object`` even if
    any of the elements is complex.

    >>> a = np.array([1, "2", 3+4j], dtype=object)
    >>> np.isreal(a)
    array([ True,  True,  True])

    isreal should not be used with object arrays

    >>> a = np.array([1+2j, 2+1j], dtype=object)
    >>> np.isreal(a)
    array([ True,  True])

    r