$\frac{-(\mathrm{i\_Na}+\mathrm{i\_K1}+\mathrm{i\_to}+\mathrm{i\_Kur}+\mathrm{i\_Kr}+\mathrm{i\_Ks}+\mathrm{i\_B\_Na}+\mathrm{i\_B\_Ca}+\mathrm{i\_NaK}+\mathrm{i\_CaP}+\mathrm{i\_NaCa}+\mathrm{i\_Ca\_L}+\mathrm{i\_st})}{\mathrm{Cm}}$ $\begin{cases}\mathrm{stim\_amplitude} & \text{if $(\mathrm{time\_}\ge \mathrm{stim\_start})\land (\mathrm{time\_}\le \mathrm{stim\_end})\land (\mathrm{time\_}-\mathrm{stim\_start}-\lfloor \frac{\mathrm{time\_}-\mathrm{stim\_start}}{\mathrm{stim\_period}}\rfloor \mathrm{stim\_period}\le \mathrm{stim\_duration})$}\\ 0 & \text{otherwise}\end{cases}$ $\frac{\mathrm{m\_inf}-m}{\mathrm{tau\_m}}$ $\begin{cases}3.2 & \text{if $V=-47.13$}\\ \frac{0.32(V+47.13)}{1-e^{-0.1(V+47.13)}} & \text{otherwise}\end{cases}$ $0.08e^{\frac{-V}{11}}$ $\frac{\mathrm{alpha\_m}}{\mathrm{alpha\_m}+\mathrm{beta\_m}}$ $\frac{1}{\mathrm{alpha\_m}+\mathrm{beta\_m}}$ $\frac{\mathrm{h\_inf}-h}{\mathrm{tau\_h}}$ $\begin{cases}0.135e^{\frac{V+80}{-6.8}} & \text{if $V< -40$}\\ 0 & \text{otherwise}\end{cases}$ $\begin{cases}3.56e^{0.079V}+3.1E5e^{0.35V} & \text{if $V< -40$}\\ \frac{1}{0.13(1+e^{\frac{V+10.66}{-11.1}})} & \text{otherwise}\end{cases}$ $\frac{\mathrm{alpha\_h}}{\mathrm{alpha\_h}+\mathrm{beta\_h}}$ $\frac{1}{\mathrm{alpha\_h}+\mathrm{beta\_h}}$ $\frac{\mathrm{j\_inf}-j}{\mathrm{tau\_j}}$ $\begin{cases}\frac{(-1.2714E5e^{0.2444V}-3.474E-5e^{-0.04391V})(V+37.78)}{1+e^{0.311(V+79.23)}} & \text{if $V< -40$}\\ 0 & \text{otherwise}\end{cases}$ $\begin{cases}\frac{0.1212e^{-0.01052V}}{1+e^{-0.1378(V+40.14)}} & \text{if $V< -40$}\\ \frac{0.3e^{-2.535E-7V}}{1+e^{-0.1(V+32)}} & \text{otherwise}\end{cases}$ $\frac{\mathrm{alpha\_j}}{\mathrm{alpha\_j}+\mathrm{beta\_j}}$ $\frac{1}{\mathrm{alpha\_j}+\mathrm{beta\_j}}$ $\mathrm{Cm}\mathrm{g\_Na}m^{3}hj(V-\mathrm{E\_Na})$ $\frac{RT}{F}\ln \left(\frac{\mathrm{Na\_o}}{\mathrm{Na\_i}}\right)$ $\frac{\mathrm{Cm}\mathrm{g\_K1}(V-\mathrm{E\_K})}{1+e^{0.07(V+80)}}$ $\frac{RT}{F}\ln \left(\frac{\mathrm{K\_o}}{\mathrm{K\_i}}\right)$ $\frac{\mathrm{oa\_infinity}-\mathrm{oa}}{\mathrm{tau\_oa}}$ $0.65(e^{\frac{V--10}{-8.5}}+e^{\frac{V--10-40}{-59}})^{-1}$ $0.65(2.5+e^{\frac{V--10+72}{17}})^{-1}$ $\frac{(\mathrm{alpha\_oa}+\mathrm{beta\_oa})^{-1}}{\mathrm{K\_Q10}}$ $(1+e^{\frac{V--10+10.47}{-17.54}})^{-1}$ $\frac{\mathrm{oi\_infinity}-\mathrm{oi}}{\mathrm{tau\_oi}}$ $(18.53+1e^{\frac{V--10+103.7}{10.95}})^{-1}$ $(35.56+1e^{\frac{V--10-8.74}{-7.44}})^{-1}$ $\frac{(\mathrm{alpha\_oi}+\mathrm{beta\_oi})^{-1}}{\mathrm{K\_Q10}}$ $(1+e^{\frac{V--10+33.1}{5.3}})^{-1}$ $\mathrm{Cm}\mathrm{g\_to}\mathrm{oa}^3\mathrm{oi}(V-\mathrm{E\_K})$ $\frac{\mathrm{ua\_infinity}-\mathrm{ua}}{\mathrm{tau\_ua}}$ $0.65(e^{\frac{V--10}{-8.5}}+e^{\frac{V--10-40}{-59}})^{-1}$ $0.65(2.5+e^{\frac{V--10+72}{17}})^{-1}$ $\frac{(\mathrm{alpha\_ua}+\mathrm{beta\_ua})^{-1}}{\mathrm{K\_Q10}}$ $(1+e^{\frac{V--10+20.3}{-9.6}})^{-1}$ $\frac{\mathrm{ui\_infinity}-\mathrm{ui}}{\mathrm{tau\_ui}}$ $(21+1e^{\frac{V--10-195}{-28}})^{-1}$ $\frac{1}{e^{\frac{V--10-168}{-16}}}$ $\frac{(\mathrm{alpha\_ui}+\mathrm{beta\_ui})^{-1}}{\mathrm{K\_Q10}}$ $(1+e^{\frac{V--10-109.45}{27.48}})^{-1}$ $\mathrm{Cm}\mathrm{g\_Kur}\mathrm{ua}^3\mathrm{ui}(V-\mathrm{E\_K})$ $0.005+\frac{0.05}{1+e^{\frac{V-15}{-13}}}$ $\frac{\mathrm{xr\_infinity}-\mathrm{xr}}{\mathrm{tau\_xr}}$ $\begin{cases}0.0015 & \text{if $\left|V+14.1\right|< 1E-10$}\\ \frac{0.0003(V+14.1)}{1-e^{\frac{V+14.1}{-5}}} & \text{otherwise}\end{cases}$ $\begin{cases}3.7836118E-4 & \text{if $\left|V-3.3328\right|< 1E-10$}\\ \frac{7.3898E-5(V-3.3328)}{e^{\frac{V-3.3328}{5.1237}}-1} & \text{otherwise}\end{cases}$ $(\mathrm{alpha\_xr}+\mathrm{beta\_xr})^{-1}$ $(1+e^{\frac{V+14.1}{-6.5}})^{-1}$ $\frac{\mathrm{Cm}\mathrm{g\_Kr}\mathrm{xr}(V-\mathrm{E\_K})}{1+e^{\frac{V+15}{22.4}}}$ $\frac{\mathrm{xs\_infinity}-\mathrm{xs}}{\mathrm{tau\_xs}}$ $\begin{cases}0.00068 & \text{if $\left|V-19.9\right|< 1E-10$}\\ \frac{4E-5(V-19.9)}{1-e^{\frac{V-19.9}{-17}}} & \text{otherwise}\end{cases}$ $\begin{cases}0.000315 & \text{if $\left|V-19.9\right|< 1E-10$}\\ \frac{3.5E-5(V-19.9)}{e^{\frac{V-19.9}{9}}-1} & \text{otherwise}\end{cases}$ $0.5(\mathrm{alpha\_xs}+\mathrm{beta\_xs})^{-1}$ $(1+e^{\frac{V-19.9}{-12.7}})^{-0.5}$ $\mathrm{Cm}\mathrm{g\_Ks}\mathrm{xs}^2(V-\mathrm{E\_K})$ $\frac{\mathrm{d\_infinity}-d}{\mathrm{tau\_d}}$ $(1+e^{\frac{V+10}{-8}})^{-1}$ $\begin{cases}\frac{4.579}{1+e^{\frac{V+10}{-6.24}}} & \text{if $\left|V+10\right|< 1E-10$}\\ \frac{1-e^{\frac{V+10}{-6.24}}}{0.035(V+10)(1+e^{\frac{V+10}{-6.24}})} & \text{otherwise}\end{cases}$ $\frac{\mathrm{f\_infinity}-f}{\mathrm{tau\_f}}$ $\frac{e^{\frac{-(V+28)}{6.9}}}{1+e^{\frac{-(V+28)}{6.9}}}$ $9(0.0197e^{-0.0337^2(V+10)^2}+0.02)^{-1}$ $\frac{\mathrm{f\_Ca\_infinity}-\mathrm{f\_Ca}}{\mathrm{tau\_f\_Ca}}$ $(1+\frac{\mathrm{Ca\_i}}{0.00035})^{-1}$ $2$ $\mathrm{Cm}\mathrm{g\_Ca\_L}df\mathrm{f\_Ca}(V-65)$ $\frac{\frac{\mathrm{Cm}\mathrm{i\_NaK\_max}\mathrm{f\_NaK}\times 1}{1+\left(\frac{\mathrm{Km\_Na\_i}}{\mathrm{Na\_i}}\right)^{1.5}}\mathrm{K\_o}}{\mathrm{K\_o}+\mathrm{Km\_K\_o}}$ $(1+0.1245e^{\frac{-0.1FV}{RT}}+0.0365\mathrm{sigma}e^{\frac{-FV}{RT}})^{-1}$ $\frac{1}{7}(e^{\frac{\mathrm{Na\_o}}{67.3}}-1)$ $\mathrm{Cm}\mathrm{g\_B\_Na}(V-\mathrm{E\_Na})$ $\mathrm{Cm}\mathrm{g\_B\_Ca}(V-\mathrm{E\_Ca})$ $\mathrm{Cm}\mathrm{g\_B\_K}(V-\mathrm{E\_K})$ $\frac{RT}{2F}\ln \left(\frac{\mathrm{Ca\_o}}{\mathrm{Ca\_i}}\right)$ $\frac{\mathrm{Cm}\mathrm{I\_NaCa\_max}(e^{\frac{\mathrm{gamma}FV}{RT}}\mathrm{Na\_i}^3\mathrm{Ca\_o}-e^{\frac{(\mathrm{gamma}-1)FV}{RT}}\mathrm{Na\_o}^3\mathrm{Ca\_i})}{(\mathrm{K\_mNa}^3+\mathrm{Na\_o}^3)(\mathrm{K\_mCa}+\mathrm{Ca\_o})(1+\mathrm{K\_sat}e^{\frac{(\mathrm{gamma}-1)VF}{RT}})}$ $\frac{\mathrm{Cm}\mathrm{i\_CaP\_max}\mathrm{Ca\_i}}{0.0005+\mathrm{Ca\_i}}$ $\frac{\mathrm{u\_infinity}-u}{\mathrm{tau\_u}}$ $8$ $(1+e^{\frac{-(\mathrm{Fn}-3.4175E-13)}{13.67E-16}})^{-1}$ $\frac{\mathrm{v\_infinity}-v}{\mathrm{tau\_v}}$ $1.91+2.09(1+e^{\frac{-(\mathrm{Fn}-3.4175E-13)}{13.67E-16}})^{-1}$ $1-(1+e^{\frac{-(\mathrm{Fn}-6.835E-14)}{13.67E-16}})^{-1}$ $\frac{\mathrm{w\_infinity}-w}{\mathrm{tau\_w}}$ $\begin{cases}\frac{6\times 0.2}{1.3} & \text{if $\left|V-7.9\right|< 1E-10$}\\ \frac{6(1-e^{\frac{-(V-7.9)}{5}})}{(1+0.3e^{\frac{-(V-7.9)}{5}})\times 1(V-7.9)} & \text{otherwise}\end{cases}$ $1-(1+e^{\frac{-(V-40)}{17}})^{-1}$ $\mathrm{K\_rel}u^{2}vw(\mathrm{Ca\_rel}-\mathrm{Ca\_i})$ $1E3(1E-15\mathrm{V\_rel}\mathrm{i\_rel}-\frac{1E-15}{2F}(0.5\mathrm{i\_Ca\_L}-0.2\mathrm{i\_NaCa}))$ $\frac{\mathrm{Ca\_up}-\mathrm{Ca\_rel}}{\mathrm{tau\_tr}}$ $\frac{\mathrm{I\_up\_max}}{1+\frac{\mathrm{K\_up}}{\mathrm{Ca\_i}}}$ $\frac{\mathrm{I\_up\_max}\mathrm{Ca\_up}}{\mathrm{Ca\_up\_max}}$ $\frac{\mathrm{CMDN\_max}\mathrm{Ca\_i}}{\mathrm{Ca\_i}+\mathrm{Km\_CMDN}}$ $\frac{\mathrm{TRPN\_max}\mathrm{Ca\_i}}{\mathrm{Ca\_i}+\mathrm{Km\_TRPN}}$ $\frac{\mathrm{CSQN\_max}\mathrm{Ca\_rel}}{\mathrm{Ca\_rel}+\mathrm{Km\_CSQN}}$ $\frac{-3\mathrm{i\_NaK}-3\mathrm{i\_NaCa}+\mathrm{i\_B\_Na}+\mathrm{i\_Na}}{\mathrm{V\_i}F}$ $\frac{\mathrm{B1}}{\mathrm{B2}}$ $\frac{2\mathrm{i\_NaK}-\mathrm{i\_K1}+\mathrm{i\_to}+\mathrm{i\_Kur}+\mathrm{i\_Kr}+\mathrm{i\_Ks}+\mathrm{i\_B\_K}}{\mathrm{V\_i}F}$ $(\mathrm{i\_tr}-\mathrm{i\_rel})(1+\frac{\mathrm{CSQN\_max}\mathrm{Km\_CSQN}}{(\mathrm{Ca\_rel}+\mathrm{Km\_CSQN})^2})^{-1}$ $\mathrm{i\_up}-\mathrm{i\_up\_leak}+\frac{\mathrm{i\_tr}\mathrm{V\_rel}}{\mathrm{V\_up}}$ $\mathrm{V\_cell}\times 0.68$ $0.0048\mathrm{V\_cell}$ $0.0552\mathrm{V\_cell}$ $\frac{2\mathrm{i\_NaCa}-\mathrm{i\_CaP}+\mathrm{i\_Ca\_L}+\mathrm{i\_B\_Ca}}{2\mathrm{V\_i}F}+\frac{\mathrm{V\_up}(\mathrm{i\_up\_leak}-\mathrm{i\_up})+\mathrm{i\_rel}\mathrm{V\_rel}}{\mathrm{V\_i}}$ $1+\frac{\mathrm{TRPN\_max}\mathrm{Km\_TRPN}}{(\mathrm{Ca\_i}+\mathrm{Km\_TRPN})^2}+\frac{\mathrm{CMDN\_max}\mathrm{Km\_CMDN}}{(\mathrm{Ca\_i}+\mathrm{Km\_CMDN})^2}$