         RestartNW: 0
              RestartNWTol: 0.1000
                   StopTol: 1.0000e-05
                 TraceFunc: 0
            TraceFuncEvals: 0
                 TraceGrad: 0
             TraceGradNorm: 0
              TraceRelFunc: 0
                    TraceX: 0
                    Update: 'PR'


lbfgs_default_params = 

  struct with fields:

                   Display: 'iter'
              DisplayIters: 1
           LineSearch_ftol: 1.0000e-04
           LineSearch_gtol: 0.0100
    LineSearch