$\frac{-(\mathrm{i\_Na}+\mathrm{i\_K}+\mathrm{i\_Leak})}{\mathrm{Cm}}$ $\mathrm{alpha\_m}(1-m)-\mathrm{beta\_m}m$ $\frac{100(-V-48)}{e^{\frac{-V-48}{15}}-1}$ $\frac{120(V+8)}{e^{\frac{V+8}{5}}-1}$ $\mathrm{alpha\_h}(1-h)-\mathrm{beta\_h}h$ $170e^{\frac{-V-90}{20}}$ $\frac{1000}{1+e^{\frac{-V-42}{10}}}$ $(\mathrm{g\_Na}+140)(V-\mathrm{E\_Na})$ $m^{3}h\mathrm{g\_Na\_max}$ $\mathrm{alpha\_n}(1-n)-\mathrm{beta\_n}n$ $\frac{0.1(-V-50)}{e^{\frac{-V-50}{10}}-1}$ $2e^{\frac{-V-90}{80}}$ $(\mathrm{g\_K1}+\mathrm{g\_K2})(V+100)$ $1200e^{\frac{-V-90}{50}}+15e^{\frac{V+90}{60}}$ $1200n^4$ $\mathrm{g\_L}(V-\mathrm{E\_L})$