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...n both d and delta). Solve.QP does give me a good result for d but I cannot obtain anything for delta. Simce dim(Dmat)=n and sol<-rep(0,n) it isn't particularly surprising. To set a diagonal matrix (B 0 ) Amat= (0 rho ) Is a crapy idea. Does anyone have an idea? Yours, Serge "Beatus qui prodest quibus potest" - (Lycklig är den som hjälper andra) Serge de Gosson de Varennes Försäkringskassan Swedish Social Insurance Agency +46-76 11 40 799 serge.de.gosson.de.varennes@forsakringskassan.se [[alternative HTML version deleted]]

...I'm new at this. You see, to solve my quadratic program I need to have the lagrange multipliers after each iteration. Solve.QP gives me the solution, the unconstrained solution aswell as the optimal value. Does anybody have an idea for how I could extract the multipliers? Thanx, Serge "Beatus qui prodest quibus potest" - (Lycklig är den som hjälper andra) Dr. Serge de Gosson de Varennes Försäkringskassan Swedish Social Insurance Agency +46-76 11 40 799 serge.de.gosson.de.varennes@forsakringskassan.se [[alternative HTML version deleted]]

....QP doesn't seem to admitt constant terms, it need Dmat (a matrix) and dvec (a vector) as defined in the package description. Now, some might object that a constant is a vector but the problem looks like this Min f(x) = (1/2)x^t Q x + D^t x + d Can anyone help me, PLEASEEEEEEE? Serge "Beatus qui prodest quibus potest" - (Lycklig är den som hjälper andra) Serge de Gosson de Varennes Försäkringskassan Swedish Social Insurance Agency +46-76 11 40 799 serge.de.gosson.de.varennes@forsakringskassan.se [[alternative HTML version deleted]]