Calculated fitting coefficients for E76M21
cos(theta_pi)	f	chi2	A	dA	B	dB	C	dC
-0.875	3	3.17	0.0775689		-0.329603		0.251662		0.029675	0.018178
-0.625	3	4.675	0.432689		-0.0965574		0.0906048		-0.0089512	0.012052
-0.375	3	1.86	0.692417		-0.0468762		0.071699		0.023308	0.012382
-0.125	3	4.591	0.889422		-0.0225382		0.104568		-0.0046482	0.012583
0.125	3	2.763	1.09126		-0.0473728		0.152252		0.01959	0.014698
0.375	3	2.957	1.18053		-0.193919		0.312581		0.0082073	0.015966
0.625	3	2.751	1.44232		-0.111446		0.303722		0.0075378	0.016212
0.875	3	3.377	1.83032		-0.105859		0.327909		0.0017548	0.015574