{{b[1], b[2], 2*b[2], b[1]/2}, {-b[1], b[1]/4 - b[2]/2, b[1]/4 - b[2]/2, 4*b[2]}, {-1/4*b[1] + b[2]/2, -1/4*b[1] + b[2]/2, -1/4*b[1] + (5*b[2])/2, -1/4*b[1] + b[2]/2}, {-b[2], -2*b[2], (3*b[1])/4 + (5*b[2])/2, (3*b[1])/4 - b[2]/2}, {b[1]/4 - (5*b[2])/2, (-3*b[1])/4 - (5*b[2])/2, b[1]/4 - b[2]/2, b[1]/4 - b[2]/2}, {-1/2*b[1], b[1]/4 - b[2]/2, -1/4*b[1] + (3*b[2])/2, 2*b[2]}, {(-3*b[1])/4 + b[2]/2, b[1]/4 - (3*b[2])/2, b[1]/4 + b[2]/2, b[1]/4 + b[2]/2}, {-2*b[2], -1/4*b[1] - b[2]/2, -1/4*b[1] - b[2]/2, 2*b[2]}, {-4*b[2], -1/4*b[1] + b[2]/2, -1/4*b[1] + b[2]/2, -2*b[2]}}
{{b[1], b[2], b[2]/2, b[1]/2}, {-b[1], b[1]/4 - b[2]/4, b[1]/4 - b[2]/4, 2*b[2]}, {-1/4*b[1] + b[2]/4, -1/4*b[1] + b[2]/4, -1/4*b[1] + (5*b[2])/4, -1/4*b[1] + b[2]/4}, {-b[2], -1/2*b[2], (3*b[1])/4 + (5*b[2])/4, (3*b[1])/4 - b[2]/4}, {b[1]/4 - (5*b[2])/4, (-3*b[1])/4 - (5*b[2])/4, b[1]/4 - b[2]/4, b[1]/4 - b[2]/4}, {-1/2*b[1], b[1]/4 - b[2]/4, -1/4*b[1] + (3*b[2])/4, b[2]}, {(-3*b[1])/4 + b[2]/4, b[1]/4 - (3*b[2])/4, b[1]/4 + b[2]/4, b[1]/4 + b[2]/4}, {-b[2], -1/4*b[1] - b[2]/4, -1/4*b[1] - b[2]/4, b[2]}, {-2*b[2], -1/4*b[1] + b[2]/4, -1/4*b[1] + b[2]/4, -b[2]}}