$\frac{-(\mathrm{i\_Na}+\mathrm{i\_NaP}+\mathrm{i\_K}+\mathrm{i\_leak})+\mathrm{i\_tonic\_e}+\mathrm{i\_app}}{C}$ $\frac{1}{1+e^{\frac{V-\mathrm{theta\_m}}{\mathrm{omega\_m}}}}$ $\mathrm{g\_Na}\mathrm{m\_infinity}^3(1-n)\frac{1}{1000}(V-\mathrm{E\_Na})$ $\frac{\mathrm{n\_infinity}-n}{\mathrm{tau\_n}}$ $\frac{1}{1+e^{\frac{V-\mathrm{theta\_n}}{\mathrm{omega\_n}}}}$ $\frac{\mathrm{tau\_n\_max}}{\cosh \left(\frac{V-\mathrm{theta\_n}}{2\mathrm{omega\_n}}\right)}$ $\mathrm{g\_K}n^4\frac{1}{1000}(V-\mathrm{E\_K})$ $\frac{1}{1+e^{\frac{V-\mathrm{theta\_m}}{\mathrm{omega\_m}}}}$ $\frac{\mathrm{h\_infinity}-h}{\mathrm{tau\_h}}$ $\frac{1}{1+e^{\frac{V-\mathrm{theta\_h}}{\mathrm{omega\_h}}}}$ $\frac{\mathrm{tau\_h\_max}}{\cosh \left(\frac{V-\mathrm{theta\_h}}{2\mathrm{omega\_h}}\right)}$ $\mathrm{g\_NaP}\mathrm{m\_infinity}h\frac{1}{1000}(V-\mathrm{E\_Na})$ $\mathrm{g\_leak}\frac{1}{1000}(V-\mathrm{E\_leak})$ $\mathrm{g\_tonic\_e}\frac{1}{1000}(V-\mathrm{E\_syn\_e})$