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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 centered(coordinates):
 """ Centers coordinate distribution with respect to its mean on all three axes. This is used as the input to the regression model, so it can be converted easily into radial coordinates. """

    coordinates = N.array(coordinates)
    means = N.mean(coordinates,axis=0)
    return coordinates - means