Useful LaTeX commands, counters and parameters not on the card.
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\setlength{cmd}{len}		Reset length parameter cmd to len
				local or global, depends on cmd.
\renewcommand{cmd}[args]{def}	Redefine cmd.
				local.
\setcounter{ctr}{n}		set ctr to n. Global.

length parameters
----------
\textwidth			Width of text!
				Change only in preamble.
\parindent			Width of paragraph indentation.
				Anywhere.
\baselineskip			Minimum distance between lines.
				Anywhere.
\parskip			Rubber paragraph spacing.
				Anywhere. Default 0.
\footnotesep			Footnote seperation.
				Anywhere.
\footnoterule			Ruler drawing command.
				Anywhere.
\bibindent			Width of extra indentation in openbib.
				Anywhere?
\columnsep			Column seperation width.
				Anywhere.
\columnseprule			Width of vertical line between columns.
				Anywhere.
\mathindent			Indentation for formulae in fleqn.
				Anywhere.
\oddsidemargin			1in less than distance from left edge of
				paper to left margin on right-hand pages.
				Preamble.
\evensidemargin			Same as above but for left hand pages.
				Preamble.
\marginparwidth			Width of marginal notes.
				Preamble.
\marginparsep			Space between outer margin and marginal note.
				Preamble.
\marginparpush			Minimum space between marginal notes.
				Preamble.
\topmargin			1in less than distance from top of paper to
				top of head.
				Preamble.
\headheight			Height of header box.
				Preamble.
\headsep			Distance between header and text.
				Preamble.
\textheight			Height of page body.
				Preamble.
\topskip			Minimum distance from top of body to bottom
				of first line of text.
				Preamble.
\footheight			Height of foot.
				Preamble.
\footskip			Distance from bottom of body to bottom of foot.
				Preamble.
\jot				Space between rows in eqnarray.
				Anywhere.
\abovedisplayskip		Extra space above long displayed formula.
				Anywhere. Rubber.
\belowdisplayskip		Extra space below long displayed formula.
				Anywhere. Rubber.
\abovedisplayshortskip		Extra space above short displayed formula.
				Anywhere. Rubber
\belowdisplayshortskip		Extra space below short displayed formula.
				Anywhere. Rubber.

command parameters
------------------
\baselinestretch		Multiplied by baselineskip to give baselineskip
				Preamble. Default 1.
\labelitemi-iv			Command producing ticks in itemize command.
				Anywhere.
\topfraction			Command which is maximum fraction of page
				that can be used for floats.
				Anywhere.
\bottomfraction
\textfraction			Command which is minimum fraction of page
				for text.
				Anywhere.

\the...				Command to print value of counter.
				Anywhere.
counter parameters
------------------
secnumdepth			Counter of level number of least significant
				sectional unit with numbered headings.
				Preamble.
tocdepth			Counter of level of least significant unit
				listed in table of contents.
				Preamble.
topnumber			Counter value of maximum top of page floats.
				Anywhere.
bottomnumber
totalnumber			Counter value of maximum floats on page.
				Anywhere.
