\documentclass[10pt,a4paper]{article} % Packages \usepackage{fancyhdr} % For header and footer \usepackage{multicol} % Allows multicols in tables \usepackage{tabularx} % Intelligent column widths \usepackage{tabulary} % Used in header and footer \usepackage{hhline} % Border under tables \usepackage{graphicx} % For images \usepackage{xcolor} % For hex colours %\usepackage[utf8x]{inputenc} % For unicode character support \usepackage[T1]{fontenc} % Without this we get weird character replacements \usepackage{colortbl} % For coloured tables \usepackage{setspace} % For line height \usepackage{lastpage} % Needed for total page number \usepackage{seqsplit} % Splits long words. %\usepackage{opensans} % Can't make this work so far. Shame. Would be lovely. \usepackage[normalem]{ulem} % For underlining links % Most of the following are not required for the majority % of cheat sheets but are needed for some symbol support. \usepackage{amsmath} % Symbols \usepackage{MnSymbol} % Symbols \usepackage{wasysym} % Symbols %\usepackage[english,german,french,spanish,italian]{babel} % Languages % Document Info \author{Ben Mason (suidroot)} \pdfinfo{ /Title (electronics-equations.pdf) /Creator (Cheatography) /Author (Ben Mason (suidroot)) /Subject (Electronics Equations Cheat Sheet) } % Lengths and widths \addtolength{\textwidth}{6cm} \addtolength{\textheight}{-1cm} \addtolength{\hoffset}{-3cm} \addtolength{\voffset}{-2cm} \setlength{\tabcolsep}{0.2cm} % Space between columns \setlength{\headsep}{-12pt} % Reduce space between header and content \setlength{\headheight}{85pt} % If less, LaTeX automatically increases it \renewcommand{\footrulewidth}{0pt} % Remove footer line \renewcommand{\headrulewidth}{0pt} % Remove header line \renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit % This two commands together give roughly % the right line height in the tables \renewcommand{\arraystretch}{1.3} \onehalfspacing % Commands \newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour \newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols \newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns \newcommand{\tn}{\tabularnewline} % Required as custom column type in use % Font and Colours \definecolor{HeadBackground}{HTML}{333333} \definecolor{FootBackground}{HTML}{666666} \definecolor{TextColor}{HTML}{333333} \definecolor{DarkBackground}{HTML}{A3A3A3} \definecolor{LightBackground}{HTML}{F3F3F3} \renewcommand{\familydefault}{\sfdefault} \color{TextColor} % Header and Footer \pagestyle{fancy} \fancyhead{} % Set header to blank \fancyfoot{} % Set footer to blank \fancyhead[L]{ \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{C} \SetRowColor{DarkBackground} \vspace{-7pt} {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}} } \end{tabulary} \columnbreak \begin{tabulary}{11cm}{L} \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Electronics Equations Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{Ben Mason (suidroot)} via \textcolor{DarkBackground}{\uline{cheatography.com/26294/cs/8010/}}} \end{tabulary} \end{multicols}} \fancyfoot[L]{ \footnotesize \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{LL} \SetRowColor{FootBackground} \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}} \\ \vspace{-2pt}Ben Mason (suidroot) \\ \uline{cheatography.com/suidroot} \\ \uline{\seqsplit{about}.com/suidroot} \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}} \\ \vspace{-2pt}Not Yet Published.\\ Updated 13th May, 2016.\\ Page {\thepage} of \pageref{LastPage}. \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}} \\ \SetRowColor{white} \vspace{-5pt} %\includegraphics[width=48px,height=48px]{dave.jpeg} Measure your website readability!\\ www.readability-score.com \end{tabulary} \end{multicols}} \begin{document} \raggedright \raggedcolumns % Set font size to small. Switch to any value % from this page to resize cheat sheet text: % www.emerson.emory.edu/services/latex/latex_169.html \footnotesize % Small font. \begin{tabularx}{17.67cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Variables}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{1}{x{17.67cm}}{P = Power (Watt)} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \mymulticolumn{1}{x{17.67cm}}{I = Current (amp)} \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{1}{x{17.67cm}}{R = Resistance (ohm)} \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} \mymulticolumn{1}{x{17.67cm}}{W = Watt} \tn % Row Count 4 (+ 1) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{1}{x{17.67cm}}{J = Joule} \tn % Row Count 5 (+ 1) % Row 5 \SetRowColor{white} \mymulticolumn{1}{x{17.67cm}}{S = Second} \tn % Row Count 6 (+ 1) % Row 6 \SetRowColor{LightBackground} \mymulticolumn{1}{x{17.67cm}}{V = Voltage (volt)} \tn % Row Count 7 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{17.67cm}{x{4.3862 cm} x{5.061 cm} x{7.4228 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{17.67cm}}{\bf\textcolor{white}{Equations}} \tn % Row 0 \SetRowColor{LightBackground} Parallel \seqsplit{Resistance} & 1 / Rtot = 1/R1 + 1/R2 .... & \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} Voltage Divider & Vout = Vin * R2 / R1 + R2 & Voltage at Middle of divider \tn % Row Count 6 (+ 3) % Row 2 \SetRowColor{LightBackground} LED Resistor & R = Vs - Vf / If & Vs = Source Voltage, Vf = LED Forward Voltage, If = LED desired Current \tn % Row Count 11 (+ 5) % Row 3 \SetRowColor{white} Capacitor Parallel & Ctot = C1 + C2 + C3.... & Total values are additive \tn % Row Count 13 (+ 2) % Row 4 \SetRowColor{LightBackground} Capacitor Series & Ctot = 1/C1 + 1/C2 + 1/C3... & \tn % Row Count 16 (+ 3) % Row 5 \SetRowColor{white} Power & P = I\textasciicircum{}2 * R & \tn % Row Count 17 (+ 1) % Row 6 \SetRowColor{LightBackground} Ohms Law (Voltage) & V = I * R & \tn % Row Count 19 (+ 2) % Row 7 \SetRowColor{white} Ohms Law \seqsplit{(Resistance)} & R = V / I & \tn % Row Count 22 (+ 3) % Row 8 \SetRowColor{LightBackground} Ohms Law (Current) & I = V / R & \tn % Row Count 24 (+ 2) % Row 9 \SetRowColor{white} Wattage & W = J / S & \tn % Row Count 25 (+ 1) % Row 10 \SetRowColor{LightBackground} Inverting Op Amp Gain & Gain = Rf / Rin & Rin = input resistor value, Rf = output resistor value \tn % Row Count 29 (+ 4) % Row 11 \SetRowColor{white} \seqsplit{Noninverting} Op Amp Gain & Gain = 1 + Rf / Rin & Rin = input resistor value, Rf = output resistor value \tn % Row Count 33 (+ 4) \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{17.67cm}{x{4.3862 cm} x{5.061 cm} x{7.4228 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{17.67cm}}{\bf\textcolor{white}{Equations (cont)}} \tn % Row 12 \SetRowColor{LightBackground} \seqsplit{Conductance} & G = 1 / R & \tn % Row Count 2 (+ 2) % Row 13 \SetRowColor{white} dB Gain Power & dB = 10 log(power ratio) & \tn % Row Count 4 (+ 2) % Row 14 \SetRowColor{LightBackground} db Gain Voltage & dB = 20 log (voltage ratio) & \tn % Row Count 7 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{17.67cm}{p{1.687 cm} p{6.4106 cm} x{8.7724 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{17.67cm}}{\bf\textcolor{white}{Units}} \tn % Row 0 \SetRowColor{LightBackground} T & tera & 10\textasciicircum{}12 \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} G & giga & 10\textasciicircum{}9 \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} M & mega & 10\textasciicircum{}6 \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} k & kilo & 10\textasciicircum{}3 \tn % Row Count 4 (+ 1) % Row 4 \SetRowColor{LightBackground} m & milli & 10\textasciicircum{}-3 \tn % Row Count 5 (+ 1) % Row 5 \SetRowColor{white} u & micro & 10\textasciicircum{}-6 \tn % Row Count 6 (+ 1) % Row 6 \SetRowColor{LightBackground} n & nano & 10\textasciicircum{}-9 \tn % Row Count 7 (+ 1) % Row 7 \SetRowColor{white} p & pico & 10\textasciicircum{}-12 \tn % Row Count 8 (+ 1) % Row 8 \SetRowColor{LightBackground} f & femto & 10\textasciicircum{}-15 \tn % Row Count 9 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} \end{document}