all tetrahedra  (type: 4a)

newname  file  num    volume         inv tr field,root  		int tr  arith

4a_2_1 G2	36     7.327724753    x^2 + 1 [0, 1] -4 R(1)		Y	Y
4a_5_1 G5-3	 2    11.751836165    x^4 - 2*x^3 - x^2 + 2*x + 2 [0, 2] 656 R(-1)	Y	N
4a_5_2 G5-3	 0    12.661214320    x^4 - 3*x^2 + 4 [0, 2] 784 R(1)	Y	N


others

4b_4_1 G4_42_0    0    10.149416064    x^2 - x + 1 [0, 1] -3 R(1)	Y	Y
4c_4_1 G4_41_0    0    10.991587130    x^2 + 1 [0, 1] -4 R(1)		Y	Y