4 -.75 -.75 .75 .75
          .5          0           0           .4     .25      0  .25
   .30901699  .95105652  -.95105652    .30901699       0      0  .25
  -.80901699  .58778525  -.58778525   -.80901699       0      0  .25
  -.80901699 -.58778525   .58778525   -.80901699       0      0  .25