This option allows to choose which numerical solver to use to estimate the critical points. There are two options: "EigenSolver" or "NAG4M2" (Numerical Algebraic Geometry for Macaulay2).
The default and strongly recommended option is "EigenSolver", in which case the function zeroDimSolve is used. If "NAG4M2" is chosen, then solveSystem is used.
i1 : G=mixedGraph(graph{{a,b}},digraph{{a,d}},bigraph{{c,d}})
o1 = MixedGraph{Bigraph => Bigraph{c => {d}}}
d => {c}
Digraph => Digraph{a => {d}}
d => {}
Graph => Graph{a => {b}}
b => {a}
o1 : MixedGraph
|
i2 : U=matrix{{1, 2, 5, 1}, {5, 3, 2, 1}, {4, 3, 5, 10}, {2, 5,1, 3}};
4 4
o2 : Matrix ZZ <--- ZZ
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i3 : solverMLE (G,U,ChooseSolver=>"EigenSolver")
o3 = (-8.4691, | 2.5 0 0 2.26215 |, 1)
| 0 1.1875 0 0 |
| 0 0 3.1875 3.26493 |
| 2.26215 0 3.26493 14.6143 |
o3 : Sequence
|
i4 : solverMLE (G,U,ChooseSolver=>"NAG4M2")
o4 = (-8.4691, | 2.5 0 0 2.26215 |, 1)
| 0 1.1875 0 0 |
| 0 0 3.1875 3.26493 |
| 2.26215 0 3.26493 14.6143 |
o4 : Sequence
|