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 ### 9. [Erwin Schrödinger]() (1926)   <br> ──────────────  
 
+Schrödinger’s equation, the foundation of wave mechanics.
+
+Time-dependent form of Schrödinger’s equation:
+
+$\huge \color{DeepSkyBlue} i\hbar \frac{\partial}{\partial t} \psi(r, t) = \hat{H} \psi(r, t)$