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/* y = vectril(x,K) For the PSD submatrices, we let Yk = tril(Xk,0) + triu(Xk,1)' Complex numbers are stored in SeDuMi's (real Xk; imag Xk) format. % This file is part of SeDuMi 1.1 by

% [y, ddotx, Dx, xTy] = PopK(d,x,K,lpq) % POPK Implements the quadratic operator for symmetric cones K. % % ********** INTERNAL FUNCTION OF SEDUMI ********** % % See al

/* y = fwblkslv(L,b, [y]) Given block sparse Cholesky structure L, as generated by SPARCHOL, this solves the equation "L.L * y = b(L.perm,:)", i.e. y = L.L\b(L.perm,:). The diagonal

% y = bwdpr1(Lden, b) % BWDPR1 Solves "PROD_k L(pk,betak)' * y = b", where % L(p,beta) = eye(n) + tril(p*beta',-1). % % **********

% [y,r,k, DAy] = normeqPcg(L,Lden,At,dense,d, DAt,K, b, cgpars, y0,rhs) % % WRAPPCG Solve y from AP(d)A' * y = b % using PCG-method and Cholesky L as conditioner. % If L is sufficiently accura

/* % y = triumtriu(r,u,K) % TRIUMTRIU Computes y = r * u % Both r and u should be upper triangular. % % SEE ALSO sedumi % ********** INTERNAL

% y = qreshape(x,flag, K) % QRESHAPE Reshuffles entries associated with Lorentz blocks. % If flag = 0 then y = [x1 for each block; x2 for each block]

% y = sqrtinv(q,vlab,K) % SQRTINV Computes for PSD-cone, y = (Q / diag(sqrt(vlab)))', so that % Y'*Y = inv(Q * diag(vlab) * Q'). % % **********

/* % y = psdmul(x,y, K) % PSDMUL for full x,y. Computes (XY+YX)/2 % % SEE ALSO sedumi % ********** INTERNAL FUNCTION OF SEDUMI ********** fun

% y = givensrot(gjc,g,x,K) % GIVENSROT % % ********** INTERNAL FUNCTION OF SEDUMI ********** % % See also sedumi function y = givensrot(gjc,g,x,K