D_Epi wd.Dw "Distance from outer boundaries (Epicardium)"
D_Endo wd2.Dw "Distance from inner boundaries (Endocardium)"
Beta if(D_Endo+D_Epi>0,D_Epi/(D_Endo+D_Epi),0.5) "Dimensionless wall distance"
theta_endo theta_endo_max+(Z/cL)*(theta_endo_max) "Fiber orientations on endocardium"
theta_epi theta_epi_max+(Z/cR)*(theta_epi_max) "Fiber orientations on epicardium"
theta (theta_epi*(1-Beta)+theta_endo*Beta) "Fiber orientations in the myocardium"