* Updates the Nesterov-Todd scaling matrix W and the scaled variable lmbda so that on exit W * zt = W^{-T} * st = lmbda. On entry, the nonlinear, 'l' and 'q' components of the arguments s and z contain W^{-T}*st and W*zt, i.e, the new iterates in the current scaling. Th
(W *sets.FloatMatrixSet, lmbda, s, z *matrix.FloatMatrix)
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