$\frac{-1}{1}(\mathrm{i\_K1}+\mathrm{i\_to}+\mathrm{i\_sus}+\mathrm{i\_Kr}+\mathrm{i\_Ks}+\mathrm{i\_CaL}+\mathrm{i\_NaK}+\mathrm{i\_Na}+\mathrm{i\_b\_Na}+\mathrm{i\_NaCa}+\mathrm{i\_b\_Ca}+\mathrm{i\_p\_K}+\mathrm{i\_p\_Ca}+\mathrm{i\_f})$ $\frac{RT}{F}\ln \left(\frac{\mathrm{Na\_o}}{\mathrm{Na\_i}}\right)$ $\frac{RT}{F}\ln \left(\frac{\mathrm{K\_o}}{\mathrm{K\_i}}\right)$ $\frac{RT}{F}\ln \left(\frac{\mathrm{K\_o}+\mathrm{P\_kna}\mathrm{Na\_o}}{\mathrm{K\_i}+\mathrm{P\_kna}\mathrm{Na\_i}}\right)$ $\frac{0.5RT}{F}\ln \left(\frac{\mathrm{Ca\_o}}{\mathrm{Ca\_i}}\right)$ $\frac{\mathrm{y\_inf}-y}{\mathrm{tau\_y}}$ $\frac{1}{1+e^{\frac{V+80.6}{6.8}}}$ $1e^{-2.9-0.04V}$ $1e^{3.6+0.11V}$ $\frac{4000}{\mathrm{alpha\_y}+\mathrm{beta\_y}}$ $\mathrm{i\_f\_Na}+\mathrm{i\_f\_K}$ $y\mathrm{g\_f\_Na}(V-\mathrm{E\_Na})$ $y\mathrm{g\_f\_K}(V-\mathrm{E\_K})$ $\mathrm{g\_K1}\mathrm{xK1\_inf}(V-8-\mathrm{E\_K})$ $\frac{1}{1+e^{0.1(V+75.44)}}$ $\frac{\mathrm{xr1\_inf}-\mathrm{Xr1}}{\mathrm{tau\_xr1}}$ $\frac{1}{1+e^{\frac{-26-V}{7}}}$ $\frac{450}{1+e^{\frac{-45-V}{10}}}$ $\frac{6}{1+e^{\frac{V+30}{11.5}}}$ $1\mathrm{alpha\_xr1}\mathrm{beta\_xr1}$ $\frac{\mathrm{xr2\_inf}-\mathrm{Xr2}}{\mathrm{tau\_xr2}}$ $\frac{1}{1+e^{\frac{V+88}{24}}}$ $\frac{3}{1+e^{\frac{-60-V}{20}}}$ $\frac{1.12}{1+e^{\frac{V-60}{20}}}$ $1\mathrm{alpha\_xr2}\mathrm{beta\_xr2}$ $\mathrm{g\_Kr}\sqrt{\frac{\mathrm{K\_o}}{5.4}}\mathrm{Xr1}\mathrm{Xr2}(V-\mathrm{E\_K})$ $\frac{\mathrm{xs\_inf}-\mathrm{Xs}}{\mathrm{tau\_xs}}$ $\frac{1}{1+e^{\frac{-5-V}{14}}}$ $\frac{1400}{\sqrt{1+e^{\frac{5-V}{6}}}}$ $\frac{1}{1+e^{\frac{V-35}{15}}}$ $1\mathrm{alpha\_xs}\mathrm{beta\_xs}+80$ $\mathrm{g\_Ks}\mathrm{Xs}^2(V-\mathrm{E\_Ks})$ $\frac{\mathrm{m\_inf}-m}{\mathrm{tau\_m}}$ $\frac{1}{(1+e^{\frac{-56.86-V}{9.03}})^2}$ $\frac{1}{1+e^{\frac{-60-V}{5}}}$ $\frac{0.1}{1+e^{\frac{V+35}{5}}}+\frac{0.1}{1+e^{\frac{V-50}{200}}}$ $1\mathrm{alpha\_m}\mathrm{beta\_m}$ $\frac{\mathrm{h\_inf}-h}{\mathrm{tau\_h}}$ $\frac{1}{(1+e^{\frac{V+71.55}{7.43}})^2}$ $\begin{cases}0.057e^{\frac{-(V+80)}{6.8}} & \text{if $V< -40$}\\ 0 & \text{otherwise}\end{cases}$ $\begin{cases}2.7e^{0.079V}+310000e^{0.3485V} & \text{if $V< -40$}\\ \frac{0.77}{0.13(1+e^{\frac{V+10.66}{-11.1}})} & \text{otherwise}\end{cases}$ $\frac{1}{\mathrm{alpha\_h}+\mathrm{beta\_h}}$ $\frac{\mathrm{j\_inf}-j}{\mathrm{tau\_j}}$ $\frac{1}{(1+e^{\frac{V+71.55}{7.43}})^2}$ $\begin{cases}\frac{\frac{(-25428e^{0.2444V}-6.948E-6e^{-0.04391V})(V+37.78)}{1}}{1+e^{0.311(V+79.23)}} & \text{if $V< -40$}\\ 0 & \text{otherwise}\end{cases}$ $\begin{cases}\frac{0.02424e^{-0.01052V}}{1+e^{-0.1378(V+40.14)}} & \text{if $V< -40$}\\ \frac{0.6e^{0.057V}}{1+e^{-0.1(V+32)}} & \text{otherwise}\end{cases}$ $\frac{1}{\mathrm{alpha\_j}+\mathrm{beta\_j}}$ $\mathrm{g\_Na}m^{3}hj(V-\mathrm{E\_Na})$ $\mathrm{g\_bna}(V-\mathrm{E\_Na})$ $\frac{\mathrm{d\_inf}-d}{\mathrm{tau\_d}}$ $\frac{1}{1+e^{\frac{-8-V}{7.5}}}$ $\frac{1.4}{1+e^{\frac{-35-V}{13}}}+0.25$ $\frac{1.4}{1+e^{\frac{V+5}{5}}}$ $\frac{1}{1+e^{\frac{50-V}{20}}}$ $1\mathrm{alpha\_d}\mathrm{beta\_d}+\mathrm{gamma\_d}$ $\frac{\mathrm{f\_inf}-f}{\mathrm{tau\_f}}$ $\frac{1}{1+e^{\frac{V+20}{7}}}$ $1102.5e^{\frac{-(V+27)^2}{225}}+\frac{200}{1+e^{\frac{13-V}{10}}}+\frac{180}{1+e^{\frac{V+30}{10}}}+20$ $\frac{\mathrm{f2\_inf}-\mathrm{f2}}{\mathrm{tau\_f2}}$ $\frac{0.67}{1+e^{\frac{V+35}{7}}}+0.33$ $562e^{\frac{-(V+27)^2}{240}}+\frac{31}{1+e^{\frac{25-V}{10}}}+\frac{80}{1+e^{\frac{V+30}{10}}}$ $\frac{\mathrm{fCass\_inf}-\mathrm{fCass}}{\mathrm{tau\_fCass}}$ $\frac{0.6}{1+\left(\frac{\mathrm{Ca\_ss}}{0.05}\right)^2}+0.4$ $\frac{80}{1+\left(\frac{\mathrm{Ca\_ss}}{0.05}\right)^2}+2$ $\frac{\frac{\mathrm{g\_CaL}df\mathrm{f2}\mathrm{fCass}\times 4(V-15)F^2}{RT}(0.25\mathrm{Ca\_ss}e^{\frac{2(V-15)F}{RT}}-\mathrm{Ca\_o})}{e^{\frac{2(V-15)F}{RT}}-1}$ $\mathrm{g\_bca}(V-\mathrm{E\_Ca})$ $\frac{\mathrm{s\_inf}-s}{\mathrm{tau\_s}}$ $\frac{1}{1+e^{\frac{V+27}{13}}}$ $85e^{\frac{-(V+25)^2}{320}}+\frac{5}{1+e^{\frac{V-40}{5}}}+42$ $\frac{\mathrm{r\_inf}-r}{\mathrm{tau\_r}}$ $\frac{1}{1+e^{\frac{20-V}{13}}}$ $10.45e^{\frac{-(V+40)^2}{1800}}+7.3$ $\mathrm{g\_to}rs(V-\mathrm{E\_K})$ $\mathrm{g\_sus}a(V-\mathrm{E\_K})$ $\frac{1}{1+e^{\frac{5-V}{17}}}$ $\frac{\frac{\frac{\mathrm{P\_NaK}\mathrm{K\_o}}{\mathrm{K\_o}+\mathrm{K\_mk}}\mathrm{Na\_i}}{\mathrm{Na\_i}+\mathrm{K\_mNa}}}{1+0.1245e^{\frac{-0.1VF}{RT}}+0.0353e^{\frac{-VF}{RT}}}$ $\frac{\mathrm{K\_NaCa}(e^{\frac{\mathrm{gamma}VF}{RT}}\mathrm{Na\_i}^3\mathrm{Ca\_o}-e^{\frac{(\mathrm{gamma}-1)VF}{RT}}\mathrm{Na\_o}^3\mathrm{Ca\_i}\mathrm{alpha})}{(\mathrm{Km\_Nai}^3+\mathrm{Na\_o}^3)(\mathrm{Km\_Ca}+\mathrm{Ca\_o})(1+\mathrm{K\_sat}e^{\frac{(\mathrm{gamma}-1)VF}{RT}})}$ $\frac{\mathrm{g\_pCa}\mathrm{Ca\_i}}{\mathrm{Ca\_i}+\mathrm{K\_pCa}}$ $\frac{\mathrm{g\_pK}(V-\mathrm{E\_K})}{1+e^{\frac{25-V}{5.98}}}$ $\mathrm{Ca\_i\_bufc}(\frac{(\mathrm{i\_leak}-\mathrm{i\_up})\mathrm{V\_sr}}{\mathrm{V\_c}}+\mathrm{i\_xfer}-\frac{1(\mathrm{i\_b\_Ca}+\mathrm{i\_p\_Ca}-2\mathrm{i\_NaCa})\mathrm{Cm}}{2\times 1\mathrm{V\_c}F})$ $\mathrm{Ca\_sr\_bufsr}(\mathrm{i\_up}-\mathrm{i\_rel}+\mathrm{i\_leak})$ $\mathrm{Ca\_ss\_bufss}(\frac{-1\mathrm{i\_CaL}\mathrm{Cm}}{2\times 1\mathrm{V\_ss}F}+\frac{\mathrm{i\_rel}\mathrm{V\_sr}}{\mathrm{V\_ss}}-\frac{\mathrm{i\_xfer}\mathrm{V\_c}}{\mathrm{V\_ss}})$ $\mathrm{V\_rel}O(\mathrm{Ca\_SR}-\mathrm{Ca\_ss})$ $\frac{\mathrm{Vmax\_up}}{1+\frac{\mathrm{K\_up}^2}{\mathrm{Ca\_i}^2}}$ $\mathrm{V\_leak}(\mathrm{Ca\_SR}-\mathrm{Ca\_i})$ $\mathrm{V\_xfer}(\mathrm{Ca\_ss}-\mathrm{Ca\_i})$ $\frac{\mathrm{k1}\mathrm{Ca\_ss}^2\mathrm{R\_prime}}{\mathrm{k3}+\mathrm{k1}\mathrm{Ca\_ss}^2}$ $\mathrm{k2}\mathrm{Ca\_ss}\mathrm{R\_prime}+\mathrm{k4}(1-\mathrm{R\_prime})$ $\frac{\mathrm{k1\_prime}}{\mathrm{kcasr}}$ $\mathrm{k2\_prime}\mathrm{kcasr}$ $\mathrm{max\_sr}-\frac{\mathrm{max\_sr}-\mathrm{min\_sr}}{1+\left(\frac{\mathrm{EC}}{\mathrm{Ca\_SR}}\right)^2}$ $\frac{1}{1+\frac{\mathrm{Buf\_c}\mathrm{K\_buf\_c}}{(\mathrm{Ca\_i}+\mathrm{K\_buf\_c})^2}}$ $\frac{1}{1+\frac{\mathrm{Buf\_sr}\mathrm{K\_buf\_sr}}{(\mathrm{Ca\_SR}+\mathrm{K\_buf\_sr})^2}}$ $\frac{1}{1+\frac{\mathrm{Buf\_ss}\mathrm{K\_buf\_ss}}{(\mathrm{Ca\_ss}+\mathrm{K\_buf\_ss})^2}}$ $\frac{-1(\mathrm{i\_Na}+\mathrm{i\_b\_Na}+\mathrm{i\_f\_Na}+3\mathrm{i\_NaK}+3\mathrm{i\_NaCa})}{1\mathrm{V\_c}F}\mathrm{Cm}$ $\frac{-1(\mathrm{i\_K1}+\mathrm{i\_to}+\mathrm{i\_f\_K}+\mathrm{i\_sus}+\mathrm{i\_Kr}+\mathrm{i\_Ks}+\mathrm{i\_p\_K}-2\mathrm{i\_NaK})}{1\mathrm{V\_c}F}\mathrm{Cm}$