Model is underconstrained. The following variables couldn't be defined: * A_cap in component cell_geometry * V_myo in component cell_geometry * V_JSR in component cell_geometry * V_NSR in component cell_geometry * V_SS in component cell_geometry * R in component membrane * T in component membrane * F in component membrane * Cm in component membrane * i_Na in component fast_sodium_current * i_Ca in component L_type_Ca_channel * i_Ca_K in component L_type_Ca_channel * i_K in component time_dependent_potassium_current * i_K1 in component time_independent_potassium_current * i_NaCa in component Na_Ca_exchanger * i_Kp in component plateau_potassium_current * i_p_Ca in component sarcolemmal_calcium_pump * i_Na_b in component sodium_background_current * i_Ca_b in component calcium_background_current * i_NaK in component sodium_potassium_pump * i_ns_Ca in component non_specific_calcium_activated_current * E_Na in component fast_sodium_current * g_Na in component fast_sodium_current * Nai in component intracellular_ionic_concentrations * Nao in component intracellular_ionic_concentrations * alpha_m in component fast_sodium_current_m_gate * beta_m in component fast_sodium_current_m_gate * alpha_h in component fast_sodium_current_h_gate * beta_h in component fast_sodium_current_h_gate * alpha_j in component fast_sodium_current_j_gate * beta_j in component fast_sodium_current_j_gate * g_K in component time_dependent_potassium_current * E_K in component time_dependent_potassium_current * PNa_K in component time_dependent_potassium_current * Ko in component intracellular_ionic_concentrations * Xi in component time_dependent_potassium_current_Xi_gate * alpha_X in component time_dependent_potassium_current_X_gate * beta_X in component time_dependent_potassium_current_X_gate * E_K1 in component time_independent_potassium_current * g_K1 in component time_independent_potassium_current * K1_infinity in component time_independent_potassium_current_K1_gate * alpha_K1 in component time_independent_potassium_current_K1_gate * beta_K1 in component time_independent_potassium_current_K1_gate * E_Kp in component plateau_potassium_current * g_Kp in component plateau_potassium_current * Kp in component plateau_potassium_current * k_NaCa in component Na_Ca_exchanger * K_mNa in component Na_Ca_exchanger * K_mCa in component Na_Ca_exchanger * k_sat in component Na_Ca_exchanger * eta in component Na_Ca_exchanger * Cao in component intracellular_ionic_concentrations * I_NaK in component sodium_potassium_pump * f_NaK in component sodium_potassium_pump * K_mNai in component sodium_potassium_pump * K_mKo in component sodium_potassium_pump * sigma in component sodium_potassium_pump * i_ns_Na in component non_specific_calcium_activated_current * i_ns_K in component non_specific_calcium_activated_current * I_ns_Ca in component non_specific_calcium_activated_current * I_ns_Na in component non_specific_calcium_activated_current * I_ns_K in component non_specific_calcium_activated_current * K_m_ns_Ca in component non_specific_calcium_activated_current * Pns_Na in component non_specific_calcium_activated_current * Pns_K in component non_specific_calcium_activated_current * K_mpCa in component sarcolemmal_calcium_pump * I_pCa in component sarcolemmal_calcium_pump * g_Cab in component calcium_background_current * E_CaN in component calcium_background_current * g_Nab in component sodium_background_current * E_NaN in component sodium_background_current * P_Ca in component L_type_Ca_channel * P_K in component L_type_Ca_channel * p_k in component L_type_Ca_channel * i_Ca_half in component L_type_Ca_channel * i_Ca_max in component L_type_Ca_channel * alpha in component L_type_Ca_channel * beta in component L_type_Ca_channel * gamma in component L_type_Ca_channel * alpha_a in component L_type_Ca_channel * beta_b in component L_type_Ca_channel * a in component L_type_Ca_channel * b in component L_type_Ca_channel * g in component L_type_Ca_channel * f in component L_type_Ca_channel * g_ in component L_type_Ca_channel * f_ in component L_type_Ca_channel * omega in component L_type_Ca_channel * y_infinity in component L_type_Ca_channel_y_gate * tau_y in component L_type_Ca_channel_y_gate * k_a_plus in component RyR_channel_states * k_a_minus in component RyR_channel_states * k_b_plus in component RyR_channel_states * k_b_minus in component RyR_channel_states * k_c_plus in component RyR_channel_states * k_c_minus in component RyR_channel_states * n in component RyR_channel_states * m in component RyR_channel_states * J_up in component SERCA_pump * k_fb in component SERCA_pump * k_rb in component SERCA_pump * fb in component SERCA_pump * rb in component SERCA_pump * Vmax_f in component SERCA_pump * Vmax_r in component SERCA_pump * n_fb in component SERCA_pump * n_rb in component SERCA_pump * J_rel in component intracellular_Ca_fluxes * J_trpn in component intracellular_Ca_fluxes * J_tr in component intracellular_Ca_fluxes * J_xfer in component intracellular_Ca_fluxes * v1 in component intracellular_Ca_fluxes * tau_tr in component intracellular_Ca_fluxes * tau_xfer in component intracellular_Ca_fluxes * HTRPN_tot in component troponin * LTRPN_tot in component troponin * k_htrpn_plus in component troponin * k_htrpn_minus in component troponin * k_ltrpn_plus in component troponin * k_ltrpn_minus in component troponin * betai in component intracellular_ionic_concentrations * beta_SS in component intracellular_ionic_concentrations * beta_JSR in component intracellular_ionic_concentrations * K_mCMDN in component intracellular_ionic_concentrations * K_mCSQN in component intracellular_ionic_concentrations * CSQN_tot in component intracellular_ionic_concentrations * CMDN_tot in component intracellular_ionic_concentrations * Force_norm in component force_computation * f_01 in component tropomyosin_cross_bridges * f_12 in component tropomyosin_cross_bridges * f_23 in component tropomyosin_cross_bridges * g_XB in component tropomyosin_cross_bridges * SL in component tropomyosin_cross_bridges * N1 in component tropomyosin_cross_bridges * f_XB in component tropomyosin_cross_bridges * g_XB_SL in component tropomyosin_cross_bridges * g_01_SL in component tropomyosin_cross_bridges * g_12_SL in component tropomyosin_cross_bridges * g_23_SL in component tropomyosin_cross_bridges * SL_norm in component tropomyosin_cross_bridges * N_trop in component tropomyosin_cross_bridges * K_trop in component tropomyosin_cross_bridges * k_trop_pn in component tropomyosin_cross_bridges * k_trop_np in component tropomyosin_cross_bridges * K_trop_half in component tropomyosin_cross_bridges * K_trop_Ca in component tropomyosin_cross_bridges * Force in component force_computation * Force_max in component force_computation * zeta in component force_computation * phi_SL in component force_computation * P1_max in component force_computation * P2_max in component force_computation * P3_max in component force_computation * d/dt V in component membrane * d/dt m in component fast_sodium_current_m_gate * d/dt h in component fast_sodium_current_h_gate * d/dt j in component fast_sodium_current_j_gate * d/dt X in component time_dependent_potassium_current_X_gate * d/dt C0 in component L_type_Ca_channel * d/dt C1 in component L_type_Ca_channel * d/dt C2 in component L_type_Ca_channel * d/dt C3 in component L_type_Ca_channel * d/dt C4 in component L_type_Ca_channel * d/dt O in component L_type_Ca_channel * d/dt C_Ca0 in component L_type_Ca_channel * d/dt C_Ca1 in component L_type_Ca_channel * d/dt C_Ca2 in component L_type_Ca_channel * d/dt C_Ca3 in component L_type_Ca_channel * d/dt C_Ca4 in component L_type_Ca_channel * d/dt O_Ca in component L_type_Ca_channel * d/dt y in component L_type_Ca_channel_y_gate * d/dt P_C1 in component RyR_channel_states * d/dt P_O1 in component RyR_channel_states * d/dt P_O2 in component RyR_channel_states * d/dt P_C2 in component RyR_channel_states * d/dt Cai in component intracellular_ionic_concentrations * d/dt Ca_SS in component intracellular_ionic_concentrations * d/dt Ca_JSR in component intracellular_ionic_concentrations * d/dt Ca_NSR in component intracellular_ionic_concentrations * d/dt Nai in component intracellular_ionic_concentrations * d/dt Ki in component intracellular_ionic_concentrations * d/dt HTRPNCa in component troponin * d/dt LTRPNCa in component troponin * d/dt N0 in component tropomyosin_cross_bridges * d/dt P0 in component tropomyosin_cross_bridges * d/dt P1 in component tropomyosin_cross_bridges * d/dt P2 in component tropomyosin_cross_bridges * d/dt P3 in component tropomyosin_cross_bridges