Number of exp k1 k2 a Rs
b1 -0.315 -0.36 0 -0.01625
b2 -0.025 -0.03 -0.005 -0.00875
b1b2 -0.025 -0.03 -0.01 0.00625
b3 0.00000 0.01000 0.01500 0.00875
b1b3 -4.16334E-17 -1.38778E-17 0 -0.00125
b2b3 0.01 0.01 -0.005 0.01625
b1b2b3 0.01 0.01 0 -0.00875
b4 0 5.55112E-17 -3.60822E-16 0.00375
b1b4 1.38778E-17 -6.93889E-17 0 -0.00125
b2b4 0 0 -2.77556E-17 0.00125
b1b2b4 0.01 0.01 0 -0.00875
b3b4 0 5.55112E-17 -2.77556E-17 -0.00125
b1b3b4 1.38778E-17 -1.38778E-17 0 0.00375
b2b3b4 0 0 2.77556E-17 0.00625
b1b2b3b4 0 -1.38778E-17 0 -0.00375
b0 0.8725 0.995 1.1425 0.946875
Table 4: Coefficients for mathematical models.