>> trilist

trilist =

     1     4     5
     1     5     2
     2     5     6
     2     6     3
     4     7     8
     4     8     5
     5     8     9
     5     9     6

>> xyz

xyz =

   -4.325648115282207e-001    1.746391428209245e-001   -9.564840548366904e-002
   -1.665584378238097e+000   -1.867085776814394e-001   -8.323494636500225e-001
    1.253323064748307e-001    7.257905482933027e-001    2.944108163926404e-001
    2.876764203585489e-001   -5.883165430141887e-001   -1.336181857937804e+000
   -1.146471350681464e+000    2.183185818197101e+000    7.143245518189522e-001
    1.190915465642999e+000   -1.363958830865957e-001    1.623562064446271e+000
    1.189164201652103e+000    1.139313135208096e-001   -6.917757017022868e-001
   -3.763327659331765e-002    1.066768211359189e+000    8.579966728282626e-001
    3.272923614086541e-001    5.928146052360535e-002    1.254001421602532e+000

>> [f,g,h] = minsurf(xyz,trilist);
>> f

f =

    1.384982298730065e+001
>> f

f =

    1.384982298730065e+001

>> g

g =

    1.640659296992834e+000
   -1.706623768985338e+000
   -4.922096726304647e-001
   -2.071424211890196e+000
   -6.424690885709727e-002
    1.678997193638982e+000
   -1.299163045902297e-002
    1.106570019376376e+000
   -7.873031718607287e-002

>> full(h)

ans =

  Columns 1 through 4 

    1.435713292803600e+000   -5.619602256926156e-001                         0   -3.617290076374691e-001
   -5.619602256926156e-001    1.098876318395759e+000   -4.490697591627041e-001                         0
                         0   -4.490697591627041e-001    1.017429351554034e+000                         0
   -3.617290076374691e-001                         0                         0    5.887751692639730e-001
   -5.120240594735150e-001   -1.967882366733063e-001                         0    1.672597295217111e-001
                         0    1.089419031328670e-001   -5.683595923913296e-001                         0
                         0                         0                         0   -3.536061379205534e-001
                         0                         0                         0   -4.069975322766162e-002
                         0                         0                         0                         0

  Columns 5 through 8 

   -5.120240594735150e-001                         0                         0                         0
   -1.967882366733063e-001    1.089419031328670e-001                         0                         0
                         0   -5.683595923913296e-001                         0                         0
    1.672597295217111e-001                         0   -3.536061379205534e-001   -4.069975322766162e-002
    1.600819913261900e+000    3.190987615001965e-001                         0   -1.309101131829466e+000
    3.190987615001965e-001    2.332639029372897e+000                         0                         0
                         0                         0    5.037511254921843e-001   -1.501449875716308e-001
   -1.309101131829466e+000                         0   -1.501449875716308e-001    3.109912441935745e+000
   -6.926497630752007e-002   -2.192320101614631e+000                         0   -1.609966569306986e+000

  Column 9 

                         0
                         0
                         0
                         0
   -6.926497630752007e-002
   -2.192320101614631e+000
                         0
   -1.609966569306986e+000
    3.871551647229137e+000