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[njnj0314]

Hello, I would like to ask what is the real meaning of the following code:
Is this the distance used to solve for x and y? What does it do?

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def dist_mat(self,x, y, inplace=True):
    d = torch.mm(x, y.transpose(0, 1))
    v_x = torch.sum(x ** 2, 1).unsqueeze(1)
    v_y = torch.sum(y ** 2, 1).unsqueeze(0)
    d *= -2
    if inplace:
        d += v_x
        d += v_y
    else:
        d = d + v_x
        d = d + v_y
    return d