shear error
     0.02000000       0.00000000
     0.02000000       0.00000000
     0.02000000       0.02000000
     0.02000000       0.02000000
     0.02000000       0.02000000
     0.00000000       0.02000000
     0.00000000       0.00000000
     0.01538462       0.00000000
     0.01384615       0.01384615
     0.01230769       0.01230769
     0.01076923       0.01076923
     0.01076923       0.01076923
     0.00923077       0.00923077
     0.00769231       0.00000000
     0.00030769       0.00000000
