Calculated fitting coefficients for E7M13
cos(theta_pi)	f	chi2	A	dA	B	dB	C	dC
-0.875	3	0.9778	1.0638		0.4623		-0.671302		-0.11026	0.027749
-0.625	3	1.648	1.26044		0.04684		-0.408861		-0.10314	0.032576
-0.375	3	1.22	1.33064		-0.182687		-0.0895778		-0.045298	0.032894
-0.125	3	0.6702	1.31243		-0.442978		0.14405		-0.074945	0.030207
0.125	3	1.249	1.63946		-0.41269		-0.667285		-0.059422	0.030255
0.375	3	1.26	1.22482		-0.378833		-0.251194		0.017553	0.024822
0.625	3	0.6704	1.20147		-0.202767		-0.0129257		-0.0023766	0.028406
0.875	3	2.553	0.993557		0.0714369		0.325931		0.041706	0.024246