deletions | additions       diff --git a/subsection_Calculus_begin_tabular_lll__1.tex b/subsection_Calculus_begin_tabular_lll__1.tex  index 4edac5b..3d6df22 100644  --- a/subsection_Calculus_begin_tabular_lll__1.tex  +++ b/subsection_Calculus_begin_tabular_lll__1.tex 
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derivative & \verb!\f'! & $f'$  %limits & \verb!\lim_{x\to \infty}! & $\displaystyle \lim_{x\to \infty}$\\  %summation & \verb!\sum_{n=1}^{\infty}a_n! & $\displaystyle \sum_{n=1}^{\infty}a_n$\\  product %product  & \verb!\prod_{n=1}^{\infty}a_n! & $\displaystyle \prod_{n=1}^{\infty}a_n$\\ integral & \verb!\int! & $\displaystyle\int$\\  double integral & \verb!\iint! & $\displaystyle\iint$\\  triple integral & \verb!\iiint! & $\displaystyle\iiint$