def aizawa(XYZ, t, a=0.95, b=0.7, c=0.6, d=3.5, e=0.25, dz=0.1):
    """
    The Aizawa Attractor.
    x0 = (0.1,0,0)
    """
    x, y, z = XYZ
    x_dt = (z - b) * x - d * y
    y_dt = d * x + (z - b) * y
    z_dt = c + a * z - (z**3) / 3 - (x**2 + y**2) * (1 + e * z) + dz * z * x**3
    return x_dt, y_dt, z_dt