The Goldman-Hodgkin-Katz (G-H-K) Equation

[latex]V_{m} = \frac{\color{#dedede}(g_{Na})(E_{Na})+ \color{black}(g_{K})(E_{K}) \color{#dedede} + (g_{Cl})(E_{Cl})}{\color{#dedede}g_{Na}+ \color {black}g_{K} \color{#dedede}+ g_{Cl}}[/latex]