$\frac{-1}{\mathrm{Cm}}(\mathrm{i\_Na}+\mathrm{i\_b\_Na}+\mathrm{i\_K1}+\mathrm{i\_K}+\mathrm{i\_to}+\mathrm{i\_b\_K}+\mathrm{i\_Ca\_L}+\mathrm{i\_b\_Ca}+\mathrm{i\_NaCa}+\mathrm{i\_NaK}+\mathrm{i\_Stim})$ $\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}$ $\frac{RT}{F}\ln \left(\frac{\mathrm{Na\_o}}{\mathrm{Na\_i}}\right)$ $\frac{RT}{F}\ln \left(\frac{\mathrm{K\_o}}{\mathrm{K\_i}}\right)$ $\frac{0.5RT}{F}\ln \left(\frac{\mathrm{Ca\_o}}{\mathrm{Ca\_i}}\right)$ $\frac{RT}{F}\ln \left(\frac{\mathrm{Na\_o}+0.12\mathrm{K\_o}}{\mathrm{Na\_i}+0.12\mathrm{K\_i}}\right)$ $\mathrm{alpha\_m}(1-m)-\mathrm{beta\_m}m$ $\begin{cases}2000 & \text{if $\left|\mathrm{E0\_m}\right|< \mathrm{delta\_m}$}\\ \frac{200\mathrm{E0\_m}}{1-e^{-0.1\mathrm{E0\_m}}} & \text{otherwise}\end{cases}$ $8000e^{-0.056(V+66)}$ $V+41$ $\mathrm{alpha\_h}(1-h)-\mathrm{beta\_h}h$ $20e^{-0.125(V+75-\mathrm{shift\_h})}$ $\frac{2000}{1+320e^{-0.1(V+75-\mathrm{shift\_h})}}$ $\mathrm{g\_Na}m^{3}h(V-\mathrm{E\_mh})$ $\mathrm{alpha\_x}(1-x)-\mathrm{beta\_x}x$ $\frac{0.5e^{0.0826(V+50)}}{1+e^{0.057(V+50)}}$ $\frac{1.3e^{-0.06(V+20)}}{1+e^{-0.04(V+20)}}$ $\frac{\mathrm{i\_Kmax}x(\mathrm{K\_i}-\mathrm{K\_o}e^{\frac{-VF}{RT}})}{140}$ $\frac{\frac{\mathrm{g\_K1}\mathrm{K\_o}}{\mathrm{K\_o}+\mathrm{K\_mk1}}(V-\mathrm{E\_K})}{1+e^{\frac{2F(V-\mathrm{E\_K}-10)}{RT}}}$ $\mathrm{alpha\_s}(1-s)-\mathrm{beta\_s}s$ $0.033e^{\frac{-V}{17}}$ $\frac{33}{1+e^{-0.125(V+10)}}$ $333(\frac{1}{1+e^{\frac{-(V+4)}{5}}}-r)$ $\mathrm{g\_to}sr(V-\mathrm{E\_K})$ $\mathrm{alpha\_d}(1-d)-\mathrm{beta\_d}d$ $\begin{cases}\mathrm{speed\_d}\times 120 & \text{if $\left|\mathrm{E0\_d}\right|< 1E-5$}\\ \frac{\mathrm{speed\_d}\times 30\mathrm{E0\_d}}{1-e^{\frac{-\mathrm{E0\_d}}{4}}} & \text{otherwise}\end{cases}$ $\begin{cases}\mathrm{speed\_d}\times 120 & \text{if $\left|\mathrm{E0\_d}\right|< 1E-5$}\\ \frac{\mathrm{speed\_d}\times -12\mathrm{E0\_d}}{1-e^{\frac{\mathrm{E0\_d}}{10}}} & \text{otherwise}\end{cases}$ $V+24-5$ $\mathrm{alpha\_f}(1-f)-\mathrm{beta\_f}f$ $\begin{cases}\mathrm{speed\_f}\times 25 & \text{if $\left|\mathrm{E0\_f}\right|< 1E-5$}\\ \frac{\mathrm{speed\_f}\times 6.25\mathrm{E0\_f}}{-1+e^{\frac{\mathrm{E0\_f}}{4}}} & \text{otherwise}\end{cases}$ $\frac{\mathrm{speed\_f}\times 50}{1+e^{\frac{-\mathrm{E0\_f}}{4}}}$ $V+34$ $\mathrm{i\_Ca\_L\_Ca}+\mathrm{i\_Ca\_L\_K}+\mathrm{i\_Ca\_L\_Na}$ $\frac{0.01df\mathrm{P\_Ca\_L\_Ca}(V-50)F}{RT(1-e^{\frac{-(V-50)F}{RT}})}(\mathrm{Na\_i}e^{\frac{50F}{RT}}-\mathrm{Na\_o}e^{\frac{-(V-50)F}{RT}})$ $\frac{0.002df\mathrm{P\_Ca\_L\_Ca}(V-50)F}{RT(1-e^{\frac{-(V-50)F}{RT}})}(\mathrm{K\_i}e^{\frac{50F}{RT}}-\mathrm{K\_o}e^{\frac{-(V-50)F}{RT}})$ $\frac{4df\mathrm{P\_Ca\_L\_Ca}(V-50)F}{RT(1-e^{\frac{-2(V-50)F}{RT}})}(\mathrm{Ca\_i}e^{\frac{100F}{RT}}-\mathrm{Ca\_o}e^{\frac{-2(V-50)F}{RT}})$ $\frac{\mathrm{i\_NaCa\_max}(e^{\frac{\mathrm{gamma}VF}{RT}}\mathrm{Na\_i}^3\mathrm{Ca\_o}-e^{\frac{(\mathrm{gamma}-1)VF}{RT}}\mathrm{Na\_o}^3\mathrm{Ca\_i})}{1+\frac{\mathrm{Ca\_i}}{0.0069}}$ $\frac{\frac{\frac{\mathrm{i\_NaK\_max}\mathrm{K\_o}}{\mathrm{K\_mK}+\mathrm{K\_o}}\mathrm{Na\_i}}{\mathrm{K\_mNa}+\mathrm{Na\_i}}\times 1}{1+0.1245e^{\frac{-0.1VF}{RT}}+0.0353e^{\frac{-VF}{RT}}}$ $\mathrm{g\_b\_Ca}(V-\mathrm{E\_Ca})$ $\mathrm{g\_b\_K}(V-\mathrm{E\_K})$ $\mathrm{g\_b\_Na}(V-\mathrm{E\_Na})$ $\frac{\mathrm{Inf\_CaMK}-\mathrm{F\_CaMK}}{\mathrm{Tau\_CaMK}}$ $\frac{\mathrm{Cmdn\_Ca}}{5E-5}$ $(\mathrm{K\_rel}\mathrm{F\_rel}+\mathrm{K\_leak\_rate})(\mathrm{Ca\_SR}-\mathrm{Ca\_i})$ $\frac{\mathrm{K\_rel\_max}\mathrm{F\_SRCa\_RyR}}{\mathrm{F\_SRCa\_RyR}+0.2}$ $\left(\frac{\mathrm{F\_2}}{\mathrm{F\_2}+0.25}\right)^2$ $\frac{\mathrm{Ca\_SR}-\mathrm{F\_SRCa\_RyR}}{\mathrm{Tau\_SRCa\_RyR}}$ $\left(\frac{\mathrm{F\_CaMK}}{0.7}\right)^2$ $\mathrm{gain\_k1}(30625000\mathrm{Ca\_i}^2-245\mathrm{i\_Ca\_L})$ $\frac{\mathrm{gain\_k2}\times 450}{1+\frac{0.36}{\mathrm{Ca\_SR}}}$ $\mathrm{gain\_k3}\times 1.885\left(\frac{\mathrm{F\_SRCa\_RyR}}{0.22}\right)^{\mathrm{N\_CaMK}}$ $\mathrm{gain\_k4}\times 1.8$ $\mathrm{k\_3}\mathrm{F\_3}-\mathrm{k\_4}\mathrm{F\_1}-\mathrm{k\_1}\mathrm{F\_1}$ $\mathrm{k\_1}\mathrm{F\_1}-\mathrm{k\_2}\mathrm{F\_2}$ $1-\mathrm{F\_1}+\mathrm{F\_2}$ $\frac{\mathrm{F\_CaMK}\mathrm{V\_max\_f}\mathrm{f\_b}-\mathrm{V\_max\_r}\mathrm{r\_b}}{1+\mathrm{f\_b}+\mathrm{r\_b}}$ $\left(\frac{\mathrm{Ca\_i}}{0.00024}\right)^2$ $\left(\frac{\mathrm{Ca\_SR}}{1.64}\right)^2$ $\mathrm{alpha\_cmdn}(\mathrm{Cmdn\_tot}-\mathrm{Cmdn\_Ca})\mathrm{Ca\_i}-\mathrm{beta\_cmdn}\mathrm{Cmdn\_Ca}$ $\mathrm{alpha\_cmdn}(\mathrm{Cmdn\_tot}-\mathrm{Cmdn\_Ca})\mathrm{Ca\_i}-\mathrm{beta\_cmdn}\mathrm{Cmdn\_Ca}$ $\mathrm{alpha\_trpn}(\mathrm{Trpn\_tot}-\mathrm{Trpn\_Ca})\mathrm{Ca\_i}-\frac{\mathrm{beta\_trpn}(1+2(1-\mathrm{Force\_norm}))}{3}\mathrm{Trpn\_Ca}$ $\mathrm{alpha\_trpn}(\mathrm{Trpn\_tot}-\mathrm{Trpn\_Ca})\mathrm{Ca\_i}-\frac{\mathrm{beta\_trpn}(1+2(1-\mathrm{Force\_norm}))}{3}\mathrm{Trpn\_Ca}$ $\frac{-(\mathrm{i\_Ca\_L\_Ca}+\mathrm{i\_b\_Ca}-2\mathrm{i\_NaCa})}{2\mathrm{v\_i}F}-\mathrm{j\_up}+\frac{\mathrm{j\_rel}\mathrm{v\_SR}}{\mathrm{v\_i}}-\mathrm{dCmdn\_Ca\_dtime}-\mathrm{dTrpn\_Ca\_dtime}$ $\frac{\mathrm{j\_up}\mathrm{v\_i}}{\mathrm{v\_SR}}-\mathrm{j\_rel}$ $\frac{-(\mathrm{i\_Na}+\mathrm{i\_b\_Na}+\mathrm{i\_Ca\_L\_Na}+3\mathrm{i\_NaCa}+3\mathrm{i\_NaK})}{\mathrm{v\_i}F}$ $\frac{-(\mathrm{i\_K1}+\mathrm{i\_K}+\mathrm{i\_to}+\mathrm{i\_b\_K}+\mathrm{i\_Ca\_L\_K}-2\mathrm{i\_NaK})}{\mathrm{v\_i}F}$ $\mathrm{zeta}\mathrm{Force\_norm}$ $\mathrm{P\_1\_max}+2\mathrm{P\_2\_max}+3\mathrm{P\_3\_max}$ $\begin{cases}\frac{\mathrm{SL}-0.6}{1.4} & \text{if $(\mathrm{SL}\ge 1.7)\land (\mathrm{SL}\le 2)$}\\ 1 & \text{if $(\mathrm{SL}> 2)\land (\mathrm{SL}\le 2.2)$}\\ \frac{3.6-\mathrm{SL}}{1.4} & \text{if $(\mathrm{SL}> 2.2)\land (\mathrm{SL}\le 2.3)$}\end{cases}$ $\frac{1\mathrm{f\_01}\times 2\mathrm{g\_XB}\times 3\mathrm{g\_XB}}{\mathrm{sigma\_paths}}$ $\frac{1\mathrm{f\_01}\times 1\mathrm{f\_12}\times 3\mathrm{g\_XB}}{\mathrm{sigma\_paths}}$ $\frac{1\mathrm{f\_01}\times 1\mathrm{f\_12}\times 1\mathrm{f\_23}}{\mathrm{sigma\_paths}}$ $1\mathrm{g\_XB}\times 2\mathrm{g\_XB}\times 3\mathrm{g\_XB}+1\mathrm{f\_01}\times 2\mathrm{g\_XB}\times 3\mathrm{g\_XB}+1\mathrm{f\_01}\times 1\mathrm{f\_12}\times 3\mathrm{g\_XB}+1\mathrm{f\_01}\times 1\mathrm{f\_12}\times 1\mathrm{f\_23}$ $\mathrm{beta\_tm}\mathrm{P\_0}-\mathrm{alpha\_tm}\mathrm{N\_0}+\mathrm{g\_01}\mathrm{N\_1}$ $\mathrm{beta\_tm}+\mathrm{f\_01}\mathrm{P\_0}+\mathrm{alpha\_tm}\mathrm{N\_0}+\mathrm{g\_01}\mathrm{P\_1}$ $\mathrm{beta\_tm}+\mathrm{f\_12}+\mathrm{g\_01}\mathrm{P\_1}+\mathrm{alpha\_tm}\mathrm{N\_1}+\mathrm{f\_01}\mathrm{P\_0}+\mathrm{g\_12}\mathrm{P\_2}$ $\mathrm{f\_23}+\mathrm{g\_12}\mathrm{P\_2}+\mathrm{f\_12}\mathrm{P\_1}+\mathrm{g\_23}\mathrm{P\_3}$ $\mathrm{g\_23}\mathrm{P\_3}+\mathrm{f\_23}\mathrm{P\_2}$ $1-\mathrm{N\_0}+\mathrm{P\_0}+\mathrm{P\_1}+\mathrm{P\_2}+\mathrm{P\_3}$ $\mathrm{beta\_tm}\left(\frac{\mathrm{Trpn\_Ca}}{\mathrm{Trpn\_tot}\mathrm{K\_tm}}\right)^{\mathrm{N\_tm}}$ $\frac{1}{1+\frac{\frac{\mathrm{beta\_trpn}}{\mathrm{alpha\_trpn}}}{0.0017-0.0009\mathrm{SL\_norm}}}$ $3.5+2.5\mathrm{SL\_norm}$ $\frac{\mathrm{SL}-1.7}{0.7}$ $3\mathrm{f\_XB}$ $10\mathrm{f\_XB}$ $7\mathrm{f\_XB}$ $\mathrm{g\_XB}(2-\mathrm{SL\_norm})$ $2\mathrm{g\_XB}(2-\mathrm{SL\_norm})$ $3\mathrm{g\_XB}(2-\mathrm{SL\_norm})$ $\frac{\mathrm{phi\_SL}(\mathrm{P\_1}+\mathrm{N\_1}+2\mathrm{P\_2}+3\mathrm{P\_3})}{\mathrm{Force\_max}}$