$\frac{-(\mathrm{I\_Na}+\mathrm{I\_t}+\mathrm{I\_ss}+\mathrm{I\_f}+\mathrm{I\_K1}+\mathrm{I\_B\_Na}+\mathrm{I\_B\_K}+\mathrm{I\_NaK}+\mathrm{I\_Stim}+\mathrm{I\_CaB}+\mathrm{I\_NaCa}+\mathrm{I\_pCa}+\mathrm{I\_LCC})}{\mathrm{Cm}}$ $\begin{cases}\mathrm{stim\_amplitude} & \text{if $(\mathrm{time\_}-\lfloor \frac{\mathrm{time\_}}{\mathrm{stim\_period}}\rfloor \mathrm{stim\_period}\ge 0)\land (\mathrm{time\_}-\lfloor \frac{\mathrm{time\_}}{\mathrm{stim\_period}}\rfloor \mathrm{stim\_period}\le \mathrm{stim\_duration})$}\\ 0 & \text{otherwise}\end{cases}$ $\begin{cases}500 & \text{if $(\mathrm{time\_}\ge 5000)\land (\mathrm{time\_}\le 10000)$}\\ 1000 & \text{otherwise}\end{cases}$ $\frac{FV}{RT}$ $2\mathrm{FVRT}$ $\frac{\mathrm{m\_infinity}-m}{\mathrm{tau\_m}}$ $\frac{1}{1+e^{\frac{V+45}{-6.5}}}$ $\frac{1.36}{\frac{0.32(V+47.13)}{1-e^{-0.1(V+47.13)}}+0.08e^{\frac{-V}{11}}}$ $\frac{\mathrm{h\_infinity}-h}{\mathrm{tau\_h}}$ $\frac{1}{1+e^{\frac{V+76.1}{6.07}}}$ $\begin{cases}0.4537(1+e^{\frac{-(V+10.66)}{11.1}}) & \text{if $V\ge -40$}\\ \frac{3.49}{0.135e^{\frac{-(V+80)}{6.8}}+3.56e^{0.079V}+310000e^{0.35V}} & \text{otherwise}\end{cases}$ $\frac{\mathrm{j\_infinity}-j}{\mathrm{tau\_j}}$ $\frac{1}{1+e^{\frac{V+76.1}{6.07}}}$ $\begin{cases}\frac{11.63(1+e^{-0.1(V+32)})}{e^{-2.535E-7V}} & \text{if $V\ge -40$}\\ \frac{3.49}{\frac{V+37.78}{1+e^{0.311(V+79.23)}}(-127140e^{0.2444V}-3.474E-5e^{-0.04391V})+\frac{0.1212e^{-0.01052V}}{1+e^{-0.1378(V+40.14)}}} & \text{otherwise}\end{cases}$ $\mathrm{g\_Na\_endo}m^{3}hj(V-\mathrm{E\_Na})$ $\frac{RT}{F}\ln \left(\frac{\mathrm{Na\_o}}{\mathrm{Na\_i}}\right)$ $1.33\mathrm{g\_Na}$ $\frac{\mathrm{r\_infinity}-r}{\mathrm{tau\_r}}$ $\frac{1000}{45.16e^{0.03577(V+50)}+98.9e^{-0.1(V+38)}}$ $\frac{1}{1+e^{\frac{V+10.6}{-11.42}}}$ $\frac{\mathrm{s\_infinity}-s}{\mathrm{tau\_s\_endo}}$ $550e^{-\left(\frac{V+70}{25}\right)^2}+49$ $\frac{1}{1+e^{\frac{V+45.3}{6.8841}}}$ $\frac{\mathrm{s\_slow\_infinity}-\mathrm{s\_slow}}{\mathrm{tau\_s\_slow\_endo}}$ $3300e^{-\left(\frac{V+70}{30}\right)^2}+49$ $\frac{1}{1+e^{\frac{V+45.3}{6.8841}}}$ $\mathrm{g\_t\_endo}r(\mathrm{a\_endo}s+\mathrm{b\_endo}\mathrm{s\_slow})(V-\mathrm{E\_K})$ $\frac{RT}{F}\ln \left(\frac{\mathrm{K\_o}}{\mathrm{K\_i}}\right)$ $0.4647\mathrm{g\_t}$ $\frac{\mathrm{r\_ss\_infinity}-\mathrm{r\_ss}}{\mathrm{tau\_r\_ss}}$ $\frac{10000}{45.16e^{0.03577(V+50)}+98.9e^{-0.1(V+38)}}$ $\frac{1}{1+e^{\frac{V+11.5}{-11.82}}}$ $\frac{\mathrm{s\_ss\_infinity}-\mathrm{s\_ss}}{\mathrm{tau\_s\_ss}}$ $2100$ $\frac{1}{1+e^{\frac{V+87.5}{10.3}}}$ $\mathrm{g\_ss}\mathrm{r\_ss}\mathrm{s\_ss}(V-\mathrm{E\_K})$ $(\frac{48E-3}{e^{\frac{V+37}{25}}+e^{\frac{V+37}{-25}}}+10E-3)\frac{0.001}{1+e^{\frac{V-\mathrm{E\_K}+76.77}{-17}}}+\frac{\mathrm{g\_K1}(V-\mathrm{E\_K}+1.73)}{(1+e^{\frac{1.613F(V-\mathrm{E\_K}+1.73)}{RT}})(1+e^{\frac{\mathrm{K\_o}-0.9988}{-0.124}})}$ $\frac{\mathrm{y\_infinity}-y}{\mathrm{tau\_y}}$ $\frac{1000}{0.11885e^{\frac{V+80}{28.37}}+0.5623e^{\frac{V+80}{-14.19}}}$ $\frac{1}{1+e^{\frac{V+138.6}{10.48}}}$ $\mathrm{i\_f\_Na}+\mathrm{i\_f\_K}$ $\mathrm{g\_f}y\mathrm{f\_Na}(V-\mathrm{E\_Na})$ $\mathrm{g\_f}y\mathrm{f\_K}(V-\mathrm{E\_K})$ $1-\mathrm{f\_Na}$ $\mathrm{g\_B\_Na}(V-\mathrm{E\_Na})$ $\mathrm{g\_B\_K}(V-\mathrm{E\_K})$ $\frac{\frac{\frac{\mathrm{i\_NaK\_max}\times 1}{1+0.1245e^{\frac{-0.1VF}{RT}}+0.0365\mathrm{sigma}e^{\frac{-VF}{RT}}}\mathrm{K\_o}}{\mathrm{K\_o}+\mathrm{K\_m\_K}}\times 1}{1+\left(\frac{\mathrm{K\_m\_Na}}{\mathrm{Na\_i}}\right)^4}$ $\frac{e^{\frac{\mathrm{Na\_o}}{67.3}}-1}{7}$ $1.17\mathrm{t\_L}$ $e^{\frac{V-\mathrm{V\_L}}{\mathrm{del\_VL}}}$ $\frac{\mathrm{expVL}}{\mathrm{t\_L}(\mathrm{expVL}+1)}$ $\frac{\mathrm{phi\_L}}{\mathrm{t\_L}}$ $\frac{\mathrm{C\_oc}^2}{\mathrm{t\_R}(\mathrm{C\_oc}^2+\mathrm{K\_RyR}^2)}$ $\frac{\mathrm{Ca\_i}^2}{\mathrm{t\_R}(\mathrm{Ca\_i}^2+\mathrm{K\_RyR}^2)}$ $\frac{\mathrm{phi\_R}}{\mathrm{t\_R}}$ $\frac{\mathrm{C\_co}(\mathrm{expVL}+a)}{\mathrm{tau\_L}\mathrm{K\_L}(\mathrm{expVL}+1)}$ $\frac{\mathrm{Ca\_i}(\mathrm{expVL}+a)}{\mathrm{tau\_L}\mathrm{K\_L}(\mathrm{expVL}+1)}$ $\frac{b(\mathrm{expVL}+a)}{\mathrm{tau\_L}(b\mathrm{expVL}+a)}$ $\frac{\mathrm{C\_oc}^2+c\mathrm{K\_RyR}^2}{\mathrm{tau\_R}(\mathrm{C\_oc}^2+\mathrm{K\_RyR}^2)}$ $\frac{\mathrm{Ca\_i}^2+c\mathrm{K\_RyR}^2}{\mathrm{tau\_R}(\mathrm{Ca\_i}^2+\mathrm{K\_RyR}^2)}$ $\frac{\mathrm{theta\_R}d(\mathrm{C\_oc}^2+c\mathrm{K\_RyR}^2)}{\mathrm{tau\_R}(d\mathrm{C\_oc}^2+c\mathrm{K\_RyR}^2)}$ $\frac{\mathrm{theta\_R}d(\mathrm{Ca\_i}^2+c\mathrm{K\_RyR}^2)}{\mathrm{tau\_R}(d\mathrm{Ca\_i}^2+c\mathrm{K\_RyR}^2)}$ $(\mathrm{alpha\_p}+\mathrm{alpha\_m})((\mathrm{alpha\_m}+\mathrm{beta\_m}+\mathrm{beta\_poc})(\mathrm{beta\_m}+\mathrm{beta\_pcc})+\mathrm{alpha\_p}(\mathrm{beta\_m}+\mathrm{beta\_poc}))$ $\frac{\mathrm{alpha\_p}\mathrm{beta\_m}(\mathrm{alpha\_p}+\mathrm{alpha\_m}+\mathrm{beta\_m}+\mathrm{beta\_pcc})}{\mathrm{denom}}$ $\frac{\mathrm{alpha\_m}(\mathrm{beta\_pcc}(\mathrm{alpha\_m}+\mathrm{beta\_m}+\mathrm{beta\_poc})+\mathrm{beta\_poc}\mathrm{alpha\_p})}{\mathrm{denom}}$ $\frac{\mathrm{alpha\_p}(\mathrm{beta\_poc}(\mathrm{alpha\_p}+\mathrm{beta\_m}+\mathrm{beta\_pcc})+\mathrm{beta\_pcc}\mathrm{alpha\_m})}{\mathrm{denom}}$ $\frac{\mathrm{alpha\_m}\mathrm{beta\_m}(\mathrm{alpha\_m}+\mathrm{alpha\_p}+\mathrm{beta\_m}+\mathrm{beta\_poc})}{\mathrm{denom}}$ $\frac{\mathrm{alpha\_m}}{\mathrm{alpha\_p}+\mathrm{alpha\_m}}$ $\frac{\mathrm{alpha\_p}}{\mathrm{alpha\_p}+\mathrm{alpha\_m}}$ $\frac{\mathrm{beta\_m}}{\mathrm{beta\_pcc}+\mathrm{beta\_m}}$ $\frac{\mathrm{beta\_pcc}}{\mathrm{beta\_pcc}+\mathrm{beta\_m}}$ $1-\mathrm{y\_oc}-\mathrm{y\_co}-\mathrm{y\_oo}-\mathrm{y\_cc}-\mathrm{y\_ci}-\mathrm{y\_ic}-\mathrm{y\_oi}-\mathrm{y\_io}$ $\mathrm{y\_oc}\mathrm{mu\_poc}+\mathrm{y\_cc}\mathrm{mu\_pcc}$ $\frac{\mathrm{alpha\_p}\mathrm{mu\_moc}+\mathrm{alpha\_m}\mathrm{mu\_mcc}}{\mathrm{alpha\_p}+\mathrm{alpha\_m}}$ $\frac{\mathrm{beta\_m}\mathrm{mu\_pcc}}{\mathrm{beta\_m}+\mathrm{beta\_pcc}}$ $\mathrm{mu\_mcc}$ $\mathrm{y\_co}\mathrm{epsilon\_pco}+\mathrm{y\_cc}\mathrm{epsilon\_pcc}$ $\mathrm{epsilon\_m}$ $\frac{\mathrm{alpha\_m}\mathrm{epsilon\_pcc}}{\mathrm{alpha\_p}+\mathrm{alpha\_m}}$ $\mathrm{epsilon\_m}$ $\mathrm{r\_1}+\mathrm{r\_5}\mathrm{z\_1}+\mathrm{r\_2}\mathrm{z\_2}+\mathrm{r\_6}\mathrm{z\_3}$ $\mathrm{r\_1}\mathrm{z\_1}-(\mathrm{r\_2}+\mathrm{r\_7})\mathrm{z\_2}+\mathrm{r\_8}\mathrm{z\_4}$ $\mathrm{r\_5}\mathrm{z\_1}-(\mathrm{r\_6}+\mathrm{r\_3})\mathrm{z\_3}+\mathrm{r\_4}\mathrm{z\_4}$ $1-\mathrm{z\_1}-\mathrm{z\_2}-\mathrm{z\_3}$ $\mathrm{Ca\_i}$ $\begin{cases}\frac{\mathrm{Ca\_i}+\frac{\frac{\mathrm{J\_L}}{\mathrm{g\_D}}\mathrm{Ca\_o}\mathrm{FVRT\_Ca}e^{-\mathrm{FVRT\_Ca}}}{1-e^{-\mathrm{FVRT\_Ca}}}}{1+\frac{\frac{\mathrm{J\_L}}{\mathrm{g\_D}}\mathrm{FVRT\_Ca}}{1-e^{-\mathrm{FVRT\_Ca}}}} & \text{if $\left|\mathrm{FVRT\_Ca}\right|> 1E-9$}\\ \frac{\mathrm{Ca\_i}+\frac{\mathrm{J\_L}}{\mathrm{g\_D}}\mathrm{Ca\_o}}{1+\frac{\mathrm{J\_L}}{\mathrm{g\_D}}} & \text{otherwise}\end{cases}$ $\frac{\mathrm{Ca\_i}+\frac{\mathrm{J\_R}}{\mathrm{g\_D}}\mathrm{Ca\_SR}}{1+\frac{\mathrm{J\_R}}{\mathrm{g\_D}}}$ $\begin{cases}\frac{\mathrm{Ca\_i}+\frac{\mathrm{J\_R}}{\mathrm{g\_D}}\mathrm{Ca\_SR}+\frac{\frac{\mathrm{J\_L}}{\mathrm{g\_D}}\mathrm{Ca\_o}\mathrm{FVRT\_Ca}e^{-\mathrm{FVRT\_Ca}}}{1-e^{-\mathrm{FVRT\_Ca}}}}{1+\frac{\mathrm{J\_R}}{\mathrm{g\_D}}+\frac{\frac{\mathrm{J\_L}}{\mathrm{g\_D}}\mathrm{FVRT\_Ca}}{1-e^{-\mathrm{FVRT\_Ca}}}} & \text{if $\left|\mathrm{FVRT\_Ca}\right|> 1E-9$}\\ \frac{\mathrm{Ca\_i}+\frac{\mathrm{J\_R}}{\mathrm{g\_D}}\mathrm{Ca\_SR}+\frac{\mathrm{J\_L}}{\mathrm{g\_D}}\mathrm{Ca\_o}}{1+\frac{\mathrm{J\_R}}{\mathrm{g\_D}}+\frac{\mathrm{J\_L}}{\mathrm{g\_D}}} & \text{otherwise}\end{cases}$ $\begin{cases}\frac{\frac{\mathrm{J\_L}\mathrm{FVRT\_Ca}}{1-e^{-\mathrm{FVRT\_Ca}}}(\mathrm{Ca\_o}e^{-\mathrm{FVRT\_Ca}}-\mathrm{Ca\_i}+\frac{\mathrm{J\_R}}{\mathrm{g\_D}}(\mathrm{Ca\_o}e^{-\mathrm{FVRT\_Ca}}-\mathrm{Ca\_SR}))}{1+\frac{\mathrm{J\_R}}{\mathrm{g\_D}}+\frac{\frac{\mathrm{J\_L}}{\mathrm{g\_D}}\mathrm{FVRT\_Ca}}{1-e^{\mathrm{FVRT\_Ca}}}} & \text{if $\left|\mathrm{FVRT\_Ca}\right|> 1E-5$}\\ \frac{\frac{\mathrm{J\_L}\times 1E-5}{1-e^{-1E-5}}(\mathrm{Ca\_o}e^{-1E-5}-\mathrm{Ca\_i}+\frac{\mathrm{J\_R}}{\mathrm{g\_D}}(\mathrm{Ca\_o}e^{-1E-5}-\mathrm{Ca\_SR}))}{1+\frac{\mathrm{J\_R}}{\mathrm{g\_D}}+\frac{\frac{\mathrm{J\_L}}{\mathrm{g\_D}}\times 1E-5}{1-e^{-1E-5}}} & \text{otherwise}\end{cases}$ $\begin{cases}\frac{\frac{\mathrm{J\_L}\mathrm{FVRT\_Ca}}{1-e^{-\mathrm{FVRT\_Ca}}}(\mathrm{Ca\_o}e^{-\mathrm{FVRT\_Ca}}-\mathrm{Ca\_i})}{1+\frac{\frac{\mathrm{J\_L}}{\mathrm{g\_D}}\mathrm{FVRT\_Ca}}{1-e^{-\mathrm{FVRT\_Ca}}}} & \text{if $\left|\mathrm{FVRT\_Ca}\right|> 1E-5$}\\ \frac{\frac{\mathrm{J\_L}\times 1E-5}{1-e^{-1E-5}}(\mathrm{Ca\_o}e^{-1E-5}-\mathrm{Ca\_i})}{1+\frac{\frac{\mathrm{J\_L}}{\mathrm{g\_D}}\times 1E-5}{1-e^{-1E-5}}} & \text{otherwise}\end{cases}$ $\frac{\mathrm{J\_R}(\mathrm{Ca\_SR}-\mathrm{Ca\_i})}{1+\frac{\mathrm{J\_R}}{\mathrm{g\_D}}}$ $\begin{cases}\frac{\mathrm{J\_R}(\mathrm{Ca\_SR}-\mathrm{Ca\_i}+\frac{\frac{\mathrm{J\_L}}{\mathrm{g\_D}}\mathrm{FVRT\_Ca}}{1-e^{-\mathrm{FVRT\_Ca}}}(\mathrm{Ca\_SR}-\mathrm{Ca\_o}e^{-\mathrm{FVRT\_Ca}}))}{1+\frac{\mathrm{J\_R}}{\mathrm{g\_D}}+\frac{\frac{\mathrm{J\_L}}{\mathrm{g\_D}}\mathrm{FVRT\_Ca}}{1-e^{-\mathrm{FVRT\_Ca}}}} & \text{if $\left|\mathrm{FVRT\_Ca}\right|> 1E-5$}\\ \frac{\mathrm{J\_R}(\mathrm{Ca\_SR}-\mathrm{Ca\_i}+\frac{\frac{\mathrm{J\_L}}{\mathrm{g\_D}}\times 1E-5}{1-e^{-1E-5}}(\mathrm{Ca\_SR}-\mathrm{Ca\_o}e^{-1E-5}))}{1+\frac{\mathrm{J\_R}}{\mathrm{g\_D}}+\frac{\frac{\mathrm{J\_L}}{\mathrm{g\_D}}\times 1E-5}{1-e^{-1E-5}}} & \text{otherwise}\end{cases}$ $\mathrm{y\_oo}\mathrm{J\_Roo}+\mathrm{J\_Rco}\mathrm{y\_co}$ $\frac{\mathrm{J\_Rco}\mathrm{beta\_pcc}}{\mathrm{beta\_m}+\mathrm{beta\_pcc}}$ $\frac{(\mathrm{z\_1}\mathrm{J\_R1}+\mathrm{z\_3}\mathrm{J\_R3})N}{\mathrm{V\_myo}}$ $\mathrm{J\_Loo}\mathrm{y\_oo}+\mathrm{J\_Loc}\mathrm{y\_oc}$ $\frac{\mathrm{J\_Loc}\mathrm{alpha\_p}}{\mathrm{alpha\_p}+\mathrm{alpha\_m}}$ $\frac{(\mathrm{z\_1}\mathrm{J\_L1}+\mathrm{z\_2}\mathrm{J\_L2})N}{\mathrm{V\_myo}}$ $\frac{\mathrm{g\_NCX}(e^{\mathrm{eta}\mathrm{FVRT}}\mathrm{Na\_i}^3\mathrm{Ca\_o}-e^{(\mathrm{eta}-1)\mathrm{FVRT}}\mathrm{Na\_o}^3\mathrm{Ca\_i})}{(\mathrm{Na\_o}^3+\mathrm{K\_mNa}^3)(\mathrm{Ca\_o}+\mathrm{K\_mCa})(1+\mathrm{k\_sat}e^{(\mathrm{eta}-1)\mathrm{FVRT}})}$ $\frac{\mathrm{g\_SERCA}\mathrm{Ca\_i}^2}{\mathrm{K\_SERCA}^2+\mathrm{Ca\_i}^2}$ $\frac{\mathrm{g\_pCa}\mathrm{Ca\_i}}{\mathrm{K\_mpCa}+\mathrm{Ca\_i}}$ $\frac{RT}{2F}\ln \left(\frac{\mathrm{Ca\_o}}{\mathrm{Ca\_i}}\right)$ $\mathrm{g\_CaB}(\mathrm{E\_Ca}-V)$ $\mathrm{g\_SRl}(\mathrm{Ca\_SR}-\mathrm{Ca\_i})$ $(1+\frac{\mathrm{k\_CMDN}\mathrm{B\_CMDN}}{(\mathrm{k\_CMDN}+\mathrm{Ca\_i})^2})^{-1}$ $-1.5\mathrm{hinch\_I\_LCC}\times 2\mathrm{V\_myo\_uL}F$ $\mathrm{hinch\_I\_NaCa}\mathrm{V\_myo\_uL}F$ $\mathrm{hinch\_I\_pCa}\times 2\mathrm{V\_myo\_uL}F$ $-\mathrm{hinch\_I\_CaB}\times 2\mathrm{V\_myo\_uL}F$ $1.5\mathrm{hinch\_I\_RyR}$ $\mathrm{alpha\_Tm}(1-z)-\mathrm{beta\_Tm}z$ $\frac{\frac{\mathrm{alpha\_0}}{\left(\frac{\mathrm{Ca\_TRPN\_50}}{\mathrm{Ca\_TRPN\_Max}}\right)^{\mathrm{n\_Hill}}}-\mathrm{K\_2}}{\mathrm{alpha\_r1}+\mathrm{K\_1}+\frac{\mathrm{alpha\_0}}{\left(\frac{\mathrm{Ca\_TRPN\_50}}{\mathrm{Ca\_TRPN\_Max}}\right)^{\mathrm{n\_Hill}}}}$ $\mathrm{Ca\_50ref}(1+\mathrm{beta\_1}(\mathrm{lambda}-1))$ $\frac{\mathrm{Ca\_50}\mathrm{Ca\_TRPN\_Max}}{\mathrm{Ca\_50}+\frac{\mathrm{k\_Ref\_off}}{\mathrm{k\_on}}(1-\frac{(1+\mathrm{beta\_0}(\mathrm{lambda}-1))\times 0.5}{\mathrm{gamma\_trpn}})}$ $\frac{\mathrm{alpha\_r2}\mathrm{z\_p}^{\mathrm{n\_Rel}}}{\mathrm{z\_p}^{\mathrm{n\_Rel}}+\mathrm{K\_z}^{\mathrm{n\_Rel}}}(1-\frac{\mathrm{n\_Rel}\mathrm{K\_z}^{\mathrm{n\_Rel}}}{\mathrm{z\_p}^{\mathrm{n\_Rel}}+\mathrm{K\_z}^{\mathrm{n\_Rel}}})$ $\frac{\mathrm{alpha\_r2}\mathrm{z\_p}^{(\mathrm{n\_Rel}-1)}\mathrm{n\_Rel}\mathrm{K\_z}^{\mathrm{n\_Rel}}}{(\mathrm{z\_p}^{\mathrm{n\_Rel}}+\mathrm{K\_z}^{\mathrm{n\_Rel}})^2}$ $\mathrm{alpha\_0}\left(\frac{\mathrm{Ca\_b}}{\mathrm{Ca\_TRPN\_50}}\right)^{\mathrm{n\_Hill}}$ $\mathrm{alpha\_r1}+\frac{\mathrm{alpha\_r2}z^{(\mathrm{n\_Rel}-1)}}{z^{\mathrm{n\_Rel}}+\mathrm{K\_z}^{\mathrm{n\_Rel}}}$ $(\mathrm{Ca\_TRPN\_Max}-\mathrm{TRPN})\mathrm{k\_off}-\mathrm{Ca\_i}\mathrm{TRPN}\mathrm{k\_on}$ $\begin{cases}\mathrm{k\_Ref\_off}(1-\frac{\mathrm{Tension}}{\mathrm{gamma\_trpn}\mathrm{T\_ref}}) & \text{if $1-\frac{\mathrm{Tension}}{\mathrm{gamma\_trpn}\mathrm{T\_ref}}> 0.1$}\\ \mathrm{k\_Ref\_off}\times 0.1 & \text{otherwise}\end{cases}$ $\begin{cases}\mathrm{ExtensionRatio} & \text{if $(\mathrm{ExtensionRatio}> 0.8)\land (\mathrm{ExtensionRatio}\le 1.15)$}\\ 1.15 & \text{if $\mathrm{ExtensionRatio}> 1.15$}\\ 0.8 & \text{otherwise}\end{cases}$ $\begin{cases}1 & \text{if $\mathrm{time\_}> 3E5$}\\ 1 & \text{otherwise}\end{cases}$ $0$ $\mathrm{ExtensionRatio}$ $1+\mathrm{beta\_0}(\mathrm{lambda}-1)$ $\frac{\mathrm{T\_ref}z}{\mathrm{z\_max}}$ $\mathrm{T\_Base}\mathrm{overlap}$ $\mathrm{Q\_1}+\mathrm{Q\_2}+\mathrm{Q\_3}$ $\mathrm{A\_1}\mathrm{dExtensionRatiodt}-\mathrm{alpha\_1}\mathrm{Q\_1}$ $\mathrm{A\_2}\mathrm{dExtensionRatiodt}-\mathrm{alpha\_2}\mathrm{Q\_2}$ $\mathrm{A\_3}\mathrm{dExtensionRatiodt}-\mathrm{alpha\_3}\mathrm{Q\_3}$ $\begin{cases}\frac{\mathrm{T\_0}(aQ+1)}{1-Q} & \text{if $Q< 0$}\\ \frac{\mathrm{T\_0}(1+(a+2)Q)}{1+Q} & \text{otherwise}\end{cases}$ $\frac{-(\mathrm{I\_Na}+\mathrm{I\_B\_Na}+\mathrm{I\_NaCa}\times 3+\mathrm{I\_NaK}\times 3+\mathrm{I\_f\_Na})\times 1}{\mathrm{V\_myo\_uL}F}$ $\mathrm{beta\_CMDN}(\mathrm{I\_RyR}-\mathrm{I\_SERCA}+\mathrm{I\_SR}+\mathrm{I\_TRPN}-\frac{2\mathrm{I\_NaCa}+\mathrm{I\_pCa}+\mathrm{I\_CaB}+\mathrm{I\_LCC}}{2\mathrm{V\_myo\_uL}F})$ $\frac{\mathrm{V\_myo\_uL}}{\mathrm{V\_SR\_uL}}(-\mathrm{I\_RyR}+\mathrm{I\_SERCA}-\mathrm{I\_SR})$ $\frac{-(\mathrm{I\_Stim}+\mathrm{I\_ss}+\mathrm{I\_B\_K}+\mathrm{I\_t}+\mathrm{I\_K1}+\mathrm{I\_f\_K}-2\mathrm{I\_NaK})\times 1}{\mathrm{V\_myo\_uL}F}$ $\mathrm{I\_TRPN}$ $\mathrm{Ca\_TRPN\_Max}-\mathrm{TRPN}$