The curve T1: y = Tan (Wx) (W > 0) is translated 6 / 6 along the x-axis to the right to obtain the curve T2. If all the symmetry centers of the curve T1 coincide with all the symmetry centers of the curve T2, then the minimum value of W is

The analytic formula of curve T2 is y = Tan [w (x - π / 6)] = Tan (Wx - w π / 6). It is easy to know that the minimum positive period of two curves is π / W, and the symmetry center of curve T1 is (0,0). Let Wx - w π / 6 = 0, that is, x = π / 6, then y = 0