BCLSisasoftwarepackageforsolvingbound-constrainedleast-squaresproblemsoftheform.Theregularizationandlineartermsareoptional.Thevectorsanddefineupperandlowerboundsonthevariables.Freeandfixedvariablesareeasilyaccomodatedbysettingcorrespondingcomponentsofandtobeand,orbysettingthem