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section_Code_Listings_We_will__.tex  section_Tables_subsection_Merging_rows__.tex  section_Handy_LaTeX_Programming_Some__.tex  section_Mathematics_1_2_3__.tex  diff --git a/section_Mathematics_1_2_3__.tex b/section_Mathematics_1_2_3__.tex  deleted file mode 100644  index f23658e..0000000  --- a/section_Mathematics_1_2_3__.tex  +++ /dev/null 
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\section{Mathematics}  $$ 1+2 =3 $$