Model hs70 Parameters u[1] = 100 u[2] = 100 u[3] = 1 u[4] = 100 c[1] = 0.1 c[2] = 1 c[3] = 2 c[4] = 3 c[5] = 4 c[6] = 5 c[7] = 6 c[8] = 7 c[9] = 8 c[10] = 9 c[11] = 10 c[12] = 11 c[13] = 12 c[14] = 13 c[15] = 14 c[16] = 15 c[17] = 16 c[18] = 17 c[19] = 18 y_obs[1] = 0.00189 y_obs[2] = 0.1038 y_obs[3] = 0.268 y_obs[4] = 0.506 y_obs[5] = 0.577 y_obs[6] = 0.604 y_obs[7] = 0.725 y_obs[8] = 0.898 y_obs[9] = 0.947 y_obs[10] = 0.845 y_obs[11] = 0.702 y_obs[12] = 0.528 y_obs[13] = 0.385 y_obs[14] = 0.257 y_obs[15] = 0.159 y_obs[16] = 0.0869 y_obs[17] = 0.0453 y_obs[18] = 0.01509 y_obs[19] = 0.00189 End Parameters Variables x[1] = 2 , >= 0.00001, <= u[1] x[2] = 4 , >= 0.00001, <= u[2] x[3] = 0.04, >= 0.00001, <= u[3] x[4] = 2 , >= 0.00001, <= u[4] obj[1:19] End Variables Intermediates b = x[3] + (1-x[3])*x[4] y_cal[1:19] = (1 + 1/(12*x[2])) * (x[3]*b^x[2]*(x[2]/6.2832)^0.5 * (c[1:19]/7.685)^(x[2]-1) * exp(x[2] - b*c[1:19]*x[2]/7.658)) + (1 + 1/(12*x[1])) *((1-x[3])*(b/x[4])^x[1]*(x[1]/6.2832)^0.5 * (c[1:19]/7.658)^(x[1]-1)* exp(x[1] - b*c[1:19]*x[1]/(7.658*x[4])) ) End Intermediates Equations x[3] + (1-x[3])*x[4] >= 0 ! best known objective = 0.007498464 obj[1:19] = (y_cal[1:19] - y_obs[1:19])^2 End Equations End Model