$\frac{\mathrm{I\_stim}-\mathrm{i\_Na}+\mathrm{i\_Ca\_L\_Ca}+\mathrm{i\_Ca\_L\_K}+\mathrm{i\_K}+\mathrm{i\_NaCa}+\mathrm{i\_K1}+\mathrm{i\_Kp}+\mathrm{i\_p\_Ca}+\mathrm{i\_Na\_b}+\mathrm{i\_Ca\_b}+\mathrm{i\_NaK}+\mathrm{i\_ns\_Ca}}{\mathrm{Cm}}$ $\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}$ $\mathrm{alpha\_m}(1-m)-\mathrm{beta\_m}m$ $\frac{0.32(V+47.13)}{1-e^{-0.1(V+47.13)}}$ $0.08e^{\frac{-V}{11}}$ $\mathrm{alpha\_h}(1-h)-\mathrm{beta\_h}h$ $\begin{cases}0.135e^{\frac{80+V}{-6.8}} & \text{if $V< -40$}\\ 0 & \text{otherwise}\end{cases}$ $\begin{cases}3.56e^{0.079V}+310000e^{0.35V} & \text{if $V< -40$}\\ \frac{1}{0.13(1+e^{\frac{V+10.66}{-11.1}})} & \text{otherwise}\end{cases}$ $\mathrm{alpha\_j}(1-j)-\mathrm{beta\_j}j$ $\begin{cases}\frac{(-127140e^{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}$ $\mathrm{g\_Na}m^{3}hj(V-\mathrm{E\_Na})$ $\frac{RT}{F}\ln \left(\frac{\mathrm{Nao}}{\mathrm{Nai}}\right)$ $\frac{\mathrm{y\_infinity}-y}{\mathrm{tau\_y}}$ $\frac{1}{1+e^{\frac{V+55}{7.5}}}+\frac{0.1}{1+e^{\frac{-V+21}{6}}}$ $20+\frac{600}{1+e^{\frac{V+30}{9.5}}}$ $\mathrm{i\_Ca\_L\_Ca\_max}y(O+\mathrm{O\_Ca})$ $\frac{\frac{1\mathrm{p\_k}y(O+\mathrm{O\_Ca})VF^2}{RT}(\mathrm{Ki}e^{\frac{VF}{RT}}-\mathrm{Ko})}{e^{\frac{VF}{RT}}-1}$ $\frac{\mathrm{P\_K}}{1+\frac{\mathrm{i\_Ca\_L\_Ca\_max}}{\mathrm{i\_Ca\_L\_Ca\_half}}}$ $1\frac{\frac{\mathrm{P\_Ca}\times 4VF^2}{RT}(0.001e^{\frac{2VF}{RT}}-0.341\mathrm{Cao})}{e^{\frac{2VF}{RT}}-1}$ $f\mathrm{C4}-gO$ $\mathrm{f\_}\mathrm{C\_Ca4}-\mathrm{g\_}\mathrm{O\_Ca}$ $0.4e^{\frac{V+12}{10}}$ $0.05e^{\frac{V+12}{-13}}$ $\frac{0.1875\mathrm{Ca\_SS}}{1}$ $\mathrm{alpha}a$ $\frac{\mathrm{beta}}{b}$ $\mathrm{beta}\mathrm{C1}+\mathrm{omega}\mathrm{C\_Ca0}-(4\mathrm{alpha}+\mathrm{gamma})\mathrm{C0}$ $4\mathrm{alpha}\mathrm{C0}+2\mathrm{beta}\mathrm{C2}+\frac{\mathrm{omega}}{b}\mathrm{C\_Ca1}-(\mathrm{beta}+3\mathrm{alpha}+\mathrm{gamma}a)\mathrm{C1}$ $3\mathrm{alpha}\mathrm{C1}+3\mathrm{beta}\mathrm{C3}+\frac{\mathrm{omega}}{b^2}\mathrm{C\_Ca2}-(\mathrm{beta}\times 2+2\mathrm{alpha}+\mathrm{gamma}a^2)\mathrm{C2}$ $2\mathrm{alpha}\mathrm{C2}+4\mathrm{beta}\mathrm{C4}+\frac{\mathrm{omega}}{b^3}\mathrm{C\_Ca3}-(\mathrm{beta}\times 3+\mathrm{alpha}+\mathrm{gamma}a^3)\mathrm{C3}$ $\mathrm{alpha}\mathrm{C3}+gO+\frac{\mathrm{omega}}{b^4}\mathrm{C\_Ca4}-(\mathrm{beta}\times 4+f+\mathrm{gamma}a^4)\mathrm{C4}$ $\mathrm{beta\_b}\mathrm{C\_Ca1}+\mathrm{gamma}\mathrm{C\_Ca0}-(4\mathrm{alpha\_a}+\mathrm{omega})\mathrm{C\_Ca0}$ $4\mathrm{alpha\_a}\mathrm{C\_Ca0}+2\mathrm{beta\_b}\mathrm{C\_Ca2}+\mathrm{gamma}a\mathrm{C1}-(\mathrm{beta\_b}+3\mathrm{alpha\_a}+\frac{\mathrm{omega}}{b})\mathrm{C\_Ca1}$ $3\mathrm{alpha\_a}\mathrm{C\_Ca1}+3\mathrm{beta\_b}\mathrm{C\_Ca3}+\mathrm{gamma}a^2\mathrm{C2}-(\mathrm{beta\_b}\times 2+2\mathrm{alpha\_a}+\frac{\mathrm{omega}}{b^2})\mathrm{C\_Ca2}$ $2\mathrm{alpha\_a}\mathrm{C\_Ca2}+4\mathrm{beta\_b}\mathrm{C\_Ca4}+\mathrm{gamma}a^3\mathrm{C3}-(\mathrm{beta\_b}\times 3+\mathrm{alpha\_a}+\frac{\mathrm{omega}}{b^3})\mathrm{C\_Ca3}$ $\mathrm{alpha\_a}\mathrm{C\_Ca3}+\mathrm{g\_}\mathrm{O\_Ca}+\mathrm{gamma}a^4\mathrm{C4}-(\mathrm{beta\_b}\times 4+\mathrm{f\_}+\frac{\mathrm{omega}}{b^4})\mathrm{C\_Ca4}$ $\mathrm{alpha\_X}(1-X)-\mathrm{beta\_X}X$ $\frac{7.19E-5(V+30)}{1-e^{-0.148(V+30)}}$ $\frac{0.000131(V+30)}{-1+e^{0.0687(V+30)}}$ $\frac{1}{1+e^{\frac{V-56.26}{32.1}}}$ $\mathrm{g\_K}\mathrm{Xi}X^2(V-\mathrm{E\_K})$ $\mathrm{g\_K\_max}\sqrt{\frac{\mathrm{Ko}}{5.4}}$ $\frac{RT}{F}\ln \left(\frac{\mathrm{Ko}+\mathrm{P\_NaK}\mathrm{Nao}}{\mathrm{Ki}+\mathrm{P\_NaK}\mathrm{Nai}}\right)$ $\frac{\mathrm{alpha\_K1}}{\mathrm{alpha\_K1}+\mathrm{beta\_K1}}$ $\frac{1.02}{1+e^{0.2385(V-\mathrm{E\_K1}-59.215)}}$ $\frac{0.49124(e^{0.08032(V+5.476-\mathrm{E\_K1})}+e^{0.06175(V-\mathrm{E\_K1}+594.31)})}{1+e^{-0.5143(V-\mathrm{E\_K1}+4.753)}}$ $\mathrm{g\_K1}\mathrm{K1\_infinity}(V-\mathrm{E\_K1})$ $\frac{RT}{F}\ln \left(\frac{\mathrm{Ko}}{\mathrm{Ki}}\right)$ $\mathrm{g\_K1\_max}\sqrt{\frac{\mathrm{Ko}}{5.4}}$ $\mathrm{g\_Kp}\mathrm{Kp}(V-\mathrm{E\_Kp})$ $\mathrm{E\_K1}$ $\frac{1}{1+e^{\frac{7.488-V}{5.98}}}$ $\frac{\frac{\frac{\mathrm{k\_NaCa}\times 1}{\mathrm{K\_mNa}^3+\mathrm{Nao}^3}\times 1}{\mathrm{K\_mCa}+\mathrm{Cao}}\times 1}{1+\mathrm{k\_sat}e^{\frac{(\mathrm{eta}-1)VF}{RT}}}(e^{\frac{\mathrm{eta}VF}{RT}}\mathrm{Nai}^3\mathrm{Cao}-e^{\frac{(\mathrm{eta}-1)VF}{RT}}\mathrm{Nao}^3\mathrm{Cai})$ $\frac{\mathrm{I\_pCa}\mathrm{Cai}}{\mathrm{K\_mpCa}+\mathrm{Cai}}$ $\mathrm{g\_Nab}(V-\mathrm{E\_NaN})$ $\mathrm{E\_Na}$ $\mathrm{g\_Cab}(V-\mathrm{E\_CaN})$ $\frac{RT}{2F}\ln \left(\frac{\mathrm{Cao}}{\mathrm{Cai}}\right)$ $\frac{\frac{\mathrm{I\_NaK}\mathrm{f\_NaK}\times 1}{1+\left(\frac{\mathrm{K\_mNai}}{\mathrm{Nai}}\right)^{1.5}}\mathrm{Ko}}{\mathrm{Ko}+\mathrm{K\_mKo}}$ $\frac{1}{1+0.1245e^{\frac{-0.1VF}{RT}}+0.0365\mathrm{sigma}e^{\frac{-VF}{RT}}}$ $\frac{1}{7}(e^{\frac{\mathrm{Nao}}{67.3}}-1)$ $\mathrm{i\_ns\_Na}+\mathrm{i\_ns\_K}$ $\frac{\mathrm{I\_ns\_Na}\times 1}{1+\left(\frac{\mathrm{K\_m\_ns\_Ca}}{\mathrm{Cai}}\right)^3}$ $\frac{\mathrm{I\_ns\_K}\times 1}{1+\left(\frac{\mathrm{K\_m\_ns\_Ca}}{\mathrm{Cai}}\right)^3}$ $\frac{\frac{1\mathrm{P\_ns\_Ca}1^2\mathrm{VnsCa}F^2}{RT}(0.75\mathrm{Nai}e^{\frac{\mathrm{VnsCa}F}{RT}}-0.75\mathrm{Nao})}{e^{\frac{\mathrm{VnsCa}F}{RT}}-1}$ $\frac{\frac{1\mathrm{P\_ns\_Ca}1^2\mathrm{VnsCa}F^2}{RT}(0.75\mathrm{Ki}e^{\frac{\mathrm{VnsCa}F}{RT}}-0.75\mathrm{Ko})}{e^{\frac{\mathrm{VnsCa}F}{RT}}-1}$ $\frac{RT}{F}\ln \left(\frac{\mathrm{Ko}+\mathrm{Nao}}{\mathrm{Ki}+\mathrm{Nai}}\right)$ $V-\mathrm{EnsCa}$ $\mathrm{Bi}(\mathrm{J\_leak}+\mathrm{J\_xfer}-\mathrm{J\_up}+\mathrm{J\_trpn}+\frac{(\mathrm{i\_Ca\_b}-2\mathrm{i\_NaCa}+\mathrm{i\_p\_Ca})\mathrm{Am}}{2\mathrm{V\_myo}F})$ $\mathrm{B\_SS}(\frac{\mathrm{J\_rel}\mathrm{V\_JSR}}{\mathrm{V\_SS}}-\frac{\mathrm{J\_xfer}\mathrm{V\_myo}}{\mathrm{V\_SS}}-\frac{\mathrm{i\_Ca\_L\_Ca}\mathrm{Am}}{2\mathrm{V\_SS}F})$ $\mathrm{P\_O1}+\mathrm{P\_O2}$ $\mathrm{k\_a\_plus}\mathrm{Ca\_SS}^{\mathrm{nCa}}\mathrm{P\_C1}-\mathrm{k\_a\_minus}\mathrm{P\_O1}+\mathrm{k\_b\_plus}\mathrm{Ca\_SS}^{\mathrm{mCa}}\mathrm{P\_O1}+\mathrm{k\_c\_plus}\mathrm{P\_O1}+\mathrm{k\_b\_minus}\mathrm{P\_O2}+\mathrm{k\_c\_minus}\mathrm{P\_C2}$ $\mathrm{k\_b\_plus}\mathrm{Ca\_SS}^{\mathrm{mCa}}\mathrm{P\_O1}-\mathrm{k\_b\_minus}\mathrm{P\_O2}$ $\mathrm{k\_a\_plus}\mathrm{Ca\_SS}^{\mathrm{nCa}}\mathrm{P\_C1}+\mathrm{k\_a\_minus}\mathrm{P\_O1}$ $\mathrm{k\_c\_plus}\mathrm{P\_O1}-\mathrm{k\_c\_minus}\mathrm{P\_C2}$ $\mathrm{B\_JSR}(\mathrm{J\_tr}-\mathrm{J\_rel})$ $\frac{(\mathrm{J\_up}-\mathrm{J\_leak})\mathrm{V\_myo}}{\mathrm{V\_NSR}}-\frac{\mathrm{J\_tr}\mathrm{V\_JSR}}{\mathrm{V\_NSR}}$ $0.00464\mathrm{V\_myo}$ $0.081\mathrm{V\_myo}$ $5.828E-5\mathrm{V\_myo}$ $\mathrm{J\_htrpn}$ $\mathrm{J\_ltrpn}$ $\frac{1}{1+\frac{\mathrm{CMDN\_tot}\mathrm{K\_mCMDN}}{(\mathrm{K\_mCMDN}+\mathrm{Cai})^2}}$ $\frac{1}{1+\frac{\mathrm{CMDN\_tot}\mathrm{K\_mCMDN}}{(\mathrm{K\_mCMDN}+\mathrm{Ca\_SS})^2}}$ $\frac{1}{1+\frac{\mathrm{CSQN\_tot}\mathrm{K\_mCSQN}}{(\mathrm{K\_mCSQN}+\mathrm{Ca\_JSR})^2}}$ $\mathrm{v1}\mathrm{RyR\_open}(\mathrm{Ca\_JSR}-\mathrm{Ca\_SS})$ $\mathrm{v2}(\mathrm{Ca\_NSR}-\mathrm{Cai})$ $\frac{\mathrm{v3}\mathrm{Cai}^2}{\mathrm{K\_mup}^2+\mathrm{Cai}^2}$ $\frac{\mathrm{Ca\_NSR}-\mathrm{Ca\_JSR}}{\mathrm{tau\_tr}}$ $\frac{\mathrm{Ca\_SS}-\mathrm{Cai}}{\mathrm{tau\_xfer}}$ $\mathrm{J\_htrpn}+\mathrm{J\_ltrpn}$ $\mathrm{k\_htrpn\_plus}\mathrm{Cai}(\mathrm{HTRPN\_tot}-\mathrm{HTRPNCa})-\mathrm{k\_htrpn\_minus}\mathrm{HTRPNCa}$ $\mathrm{k\_ltrpn\_plus}\mathrm{Cai}(\mathrm{LTRPN\_tot}-\mathrm{LTRPNCa})-\mathrm{k\_ltrpn\_minus}\mathrm{LTRPNCa}$ $\frac{-(\mathrm{i\_Na}+\mathrm{i\_Na\_b}+\mathrm{i\_ns\_Na}+\mathrm{i\_NaCa}\times 3+\mathrm{i\_NaK}\times 3)\mathrm{Am}}{\mathrm{V\_myo}F}$ $\frac{-(\mathrm{i\_Ca\_L\_K}+\mathrm{i\_K}+\mathrm{i\_K1}+\mathrm{i\_Kp}+\mathrm{i\_ns\_K}-\mathrm{i\_NaK}\times 2)\mathrm{Am}}{\mathrm{V\_myo}F}$ $\frac{(\mathrm{i\_Ca\_L\_K}+\mathrm{i\_K}+\mathrm{i\_K1}+\mathrm{i\_Kp}+\mathrm{i\_ns\_K}-\mathrm{i\_NaK}\times 2)\mathrm{Am}}{\mathrm{V\_myo}F}$