deletions | additions       diff --git a/paragraph_2_Mimic_the_derivation__.tex b/paragraph_2_Mimic_the_derivation__.tex  index e59fbdf..5d54d18 100644  --- a/paragraph_2_Mimic_the_derivation__.tex  +++ b/paragraph_2_Mimic_the_derivation__.tex 
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\begin{array}{ll}  u_{t} + f(u)_{x} = 0\\  u(x,0) = u_{0}(x)\\    \end{array}  \right