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src/p/y/pylearn2-HEAD/pylearn2/optimization/test_batch_gradient_descent.py   pylearn2(Download)
 
 
                minimizer._normalize_grad()
                d = minimizer.param_to_grad_shared[x].get_value()
                step_len = ( np.dot(b,d) + 0.5 * np.dot(d,np.dot(A,actual_x)) \