$\frac{-(-\mathrm{i\_Stim}+\mathrm{i\_Na}+\mathrm{i\_K}+\mathrm{i\_L})}{\mathrm{Cm}}$ $\begin{cases}20 & \text{if $(\mathrm{time\_}\ge 10)\land (\mathrm{time\_}\le 10.5)$}\\ 0 & \text{otherwise}\end{cases}$ $\mathrm{alpha\_m}(1-m)-\mathrm{beta\_m}m$ $\frac{-0.1(V+50)}{e^{\frac{-(V+50)}{10}}-1}$ $4e^{\frac{-(V+75)}{18}}$ $\mathrm{alpha\_h}(1-h)-\mathrm{beta\_h}h$ $0.07e^{\frac{-(V+75)}{20}}$ $\frac{1}{e^{\frac{-(V+45)}{10}}+1}$ $\mathrm{g\_Na}m^{3}h(V-\mathrm{E\_Na})$ $\mathrm{E\_R}+115$ $\mathrm{alpha\_n}(1-n)-\mathrm{beta\_n}n$ $\frac{-0.01(V+65)}{e^{\frac{-(V+65)}{10}}-1}$ $0.125e^{\frac{V+75}{80}}$ $\mathrm{g\_K}n^4(V-\mathrm{E\_K})$ $\mathrm{E\_R}-12$ $\mathrm{g\_L}(V-\mathrm{E\_L})$ $\mathrm{E\_R}+10.613$