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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 d2gauss(x,m_y,sigma):
    '''returns the second derivative of the gaussian with mean m_y,
and standard deviation sigma, calculated at the points of x.'''

    return gauss(x,m_y,sigma)*[-1/sigma**2 + (n-m_y)**2/sigma**4 for n in x]