DQED - Bounded, Constrained Least Squares/Nonlinear Equations

DQED can solve, in the least squares sense, systems of linear or nonlinear equations, with bounds or constraints.

Files you may copy include:

• dqed.f90, the source code.
• dqed_prb.f90, a sample problem.
• dqed_prb.inp, input for the sample problem.
• dqed_prb.out, sample problem output.

The list of routines includes:

• DIFCEN estimates a jacobian using central differences.
• DIFFOR estimates a jacobian using forward differences.
• IDAMAX finds the index of the vector element of maximum absolute value.
• IVOUT prints integer vectors.
• DAMAX returns the maximum absolute value of the entries in a vector.
• DASUM sums the absolute values of the entries of a vector.
• DAXPY adds a constant times one vector to another.
• DBOCLS solves a bounded and constrained least squares problem.
• DBOLS solves the linear system E*X = F in the least squares sense.
• DBOLSM solves E*X = F in the least squares sense with bounds on some X values.
• DCOPY copies one vector into another.
• DDOT forms the dot product of two vectors.
• DGECO factors a double precision matrix and estimates its condition.
• DGEFA factors a double precision matrix.
• DGESL solves a system factored by DGECO or DGEFA.
• DMOUT prints double precision matrices.
• DNRM2 computes the Euclidean norm of a vector.
• DPCHEK checks the user's jacobian routine.
• DQED solves bounded and constrained least squares and nonlinear equations.
• DQEDEV evaluates functions being treated by DQED.
• DQEDGN ???
• DQEDIP ???
• DQEDMN ???
• DROT applies a plane rotation.
• DROTG constructs a Givens plane rotation.
• DSCAL scales a vector by a constant.
• DSWAP interchanges two vectors.
• DVOUT prints double precision vectors.
• XERRWV is an error output message routine.

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