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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def sph2cart(r, az, elev):
 """ Convert spherical to cartesian coordinates. Attributes r : float radius az : float aziumth (angle about z axis) elev : float elevation from xy plane Returns ------- float x-coordinate float y-coordinate float z-coordinate """

    x = r * np.cos(az) * np.sin(elev)
    y = r * np.sin(az) * np.sin(elev)
    z = r * np.cos(elev)
    return x, y, z