(re, im)
Return the half-axis (or origin) on which (re, im) point is located.
Return the half-axis (or origin) on which (re, im) point is located.
Return the half - axis ( or origin ) on which ( re im ) point is located .
def _classify_point(re, im):
    """Return the half-axis (or origin) on which (re, im) point is located. """
    if not re and not im:
        return OO

    if not re:
        if im > 0:
            return A2
        else:
            return A4
    elif not im:
        if re > 0:
            return A1
        else:
            return A3
def _classify_point ( re , im ) : if not re and not im : return OO if not re : if im > 0 : return A2 else : return A4 elif not im : if re > 0 : return A1 else : return A3