# Equation for calculating change in entropy

Prompt

\[ \delta S = \int (\delta A_\mu \sqrt{-g} + \mathcal{L}_{\text{int}} + \mathcal{L}_{\text{rep}} + \mathcal{L}_{\text{H}_2\text{O}}) \, d^4x \]

Prompt

\[ \delta S = \int (\delta A_\mu \sqrt{-g} + \mathcal{L}_{\text{int}} + \mathcal{L}_{\text{rep}} + \mathcal{L}_{\text{H}_2\text{O}}) \, d^4x \]