-1                        -1
                        -1       -0.7071067811865475
                        -1                         0
                        -1        0.7071067811865476
                        -1                         1
       -0.7071067811865475                         0
                         0                        -1
                         0       -0.9807852804032304
                         0       -0.9238795325112867
                         0       -0.8314696123025453
                         0       -0.7071067811865475
                         0        -0.555570233019602
                         0       -0.3826834323650897
                         0       -0.1950903220161282
                         0                         0
                         0        0.1950903220161283
                         0        0.3826834323650898
                         0        0.5555702330196023
                         0        0.7071067811865476
                         0        0.8314696123025452
                         0        0.9238795325112867
                         0        0.9807852804032304
                         0                         1
        0.7071067811865476                         0
                         1                        -1
                         1       -0.7071067811865475
                         1                         0
                         1        0.7071067811865476
                         1                         1