/*  

 N=7
 M=2

 length of multipoles: 
   [ 1/8, 0, 0, 49/1188, 343/1584, 1225/5616, 251/1584, 4955/20592 ]

 cumulative squared lengths A_M:
   [ 0, 0, 49/1188, 1225/4752, 1225/2574, 13063/20592, 7/8 ]

 line, quadrangle, and point

 symmetry group Z_2

 configuration:

   [  0.614929898432871791176916856156, -0.611055303874222792537795863264, -0.498470295625044468396356887184 ],
   [  0.614929898432871791176916856156,  0.611055303874222792537795863264, -0.498470295625044468396356887184 ],
   [ -0.746291932317155992870944332659,  0.000000000000000000000000000000,  0.665618773592155721259001458933 ],
   [  0.372852942261002166763930992557,  0.647752034383807798732855650760,  0.664377893520661976957388185846 ],
   [  0.372852942261002166763930992557, -0.647752034383807798732855650760,  0.664377893520661976957388185846 ],
   [ -0.609299229864953785990167997868,  0.612932417172260391179041088279, -0.503058943331041838198910235624 ],
   [ -0.609299229864953785990167997868, -0.612932417172260391179041088279, -0.503058943331041838198910235624 ]

*/

psi7b:=[ 1/6*Sqrt(2)*Sqrt(3),0,0, 1/6*Sqrt(3)*Sqrt(7),0,0,0, 1/2];