deletions | additions       diff --git a/layout.md b/layout.md  index 776824f..ff62699 100644  --- a/layout.md  +++ b/layout.md 
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section_Equations_E_x_frac__.tex section_Equations_The_equation_for__.tex  section_Analytical_solution_When_e_1__.tex  section_Numerical_algorithm_begin_enumerate__.tex  section_Code_begin_lstlisting_language__.tex