http://rangiroa.essi.fr/cours/refcard/latex_refcard.pdf Pdf that provides precise command (input), how the command will appear (output), and meaning of the expression.
http://www.artofproblemsolving.com/LaTeX/AoPS_L_GuideSym.php#operators
http://rangiroa.essi.fr/cours/refcard/latex_refcard.pdf Pdf that provides precise command (input), how the command will appear (output), and meaning of the expression.
http://www.artofproblemsolving.com/LaTeX/AoPS_L_GuideSym.php#operators