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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 gauss(x, sigma):
 """ Compute 1-D value of gaussian at position x relative to center."""

    return (np.exp(-np.power(x, 2) / (2 * np.power(sigma, 2))) /
            (sigma * np.sqrt(2 * np.pi)))