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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 mydot(A, B):
 r"""Dot-product that can handle dense and sparse arrays Parameters A : numpy ndarray or scipy sparse matrix The first factor B : numpy ndarray or scipy sparse matrix The second factor Returns C : numpy ndarray or scipy sparse matrix The dot-product of A and B """

    if issparse(A) :
        return A.dot(B)
    elif issparse(B):
        return (B.T.dot(A.T)).T
    else:
        return np.dot(A, B)