User:Rob Kam/sandbox
LaTeX
- http://pdp7.org/synthwiki/OpAmpCircuits
- http://en.wikipedia.org/wiki/Wikipedia:WikiProject_Electronics/Programs
<m>
\operatorname{erfc}(x) =
\frac{2}{\sqrt{\pi}} \int_x^{\infty} e^{-t^2}\,dt =
\frac{e^{-x^2}}{x\sqrt{\pi}}\sum_{n=0}^\infty (-1)^n \frac{(2n)!}{n!(2x)^{2n}}
</m>
<m> % Optical Fiber Polarization Controller % Author: Jimi Oke \documentclass{article} \usepackage{tikz} %%%< \usepackage{verbatim} \usepackage[active,tightpage]{preview} \PreviewEnvironment{tikzpicture} \setlength\PreviewBorder{5pt}% %%%> \begin{comment}
- Title: Optical Fiber Polarization Controller
- Tags: Foreach; Scopes
- Author: Jimi Oke
- Slug: polarization-controller
A polarization controller is an optical device for modifying the polarization state of light. This is a simplified 3-D diagram of an optical fiber polarization controller. \end{comment} \begin{document} \begin{tikzpicture}[x={(0.866cm,-0.5cm)},
y={(0.866cm,0.5cm)}, z={(0cm,1cm)}]
\tikzstyle{paddle}=[very thick, fill=white] \coordinate (O) at (0, 0, 0);
% fiber in \draw[thick] (0,-1.5,0) to[out=30,in=220] (1,0,0);
% first divider \draw[fill=white] (1,-.4,-.5) -- (2,-.4,-.5) -- (2,-.4,.25) --
(1,-.4,.25) -- (1,-.4,-.5)
(2,-.4,.25) -- (2,.4,.25) -- (1,.4,.25) -- (1,-.4,.25)
(2,.4,.25) -- (2,.4,-.5) -- (2,-.4,-.5);
% first paddle \draw[paddle]
(2,0,0) -- (4,0,0) -- (4,2,0) -- (2,2,0) -- (2,0,0) % first face
(2,0,0) -- (2,0,-.1)
(4,0,0) -- (4,0,-.1)
(2,0,-.1) -- (4,0,-.1) -- (4,2,-.1);
\draw (3,1,0) circle (.94)
(3,1,0) circle (.9);
% second divider \draw[fill=white] (4,-.4,-.5) -- (5,-.4,-.5) -- (5,-.4,.25) --
(4,-.4,.25) -- (4,-.4,-.5)
(5,-.4,.25) -- (5,.4,.25) -- (4,.4,.25) -- (4,-.4,.25)
(5,.4,.25) -- (5,.4,-.5) -- (5,-.4,-.5);
% second paddle \filldraw[paddle]
(5,0,0) -- (7,0,0) -- (7,0,2) -- (5,0,2) -- (5,0,0) % first face
(7,0,0) -- (7,.1,0) -- (7,.1,2) -- (5,.1,2) -- (5,0,2)
(7,.1,2) -- (7,0,2);
% third divider \draw[fill=white] (7,-.4,-.5) -- (8,-.4,-.5) -- (8,-.4,.25) --
(7,-.4,.25) -- (7,-.4,-.5)
(8,-.4,.25) -- (8,.4,.25) -- (7,.4,.25) -- (7,-.4,.25)
(8,.4,.25) -- (8,.4,-.5) -- (8,-.4,-.5);
% third paddle \filldraw[paddle]
(8,0,0) -- (10,0,0) -- (10, -1.732,1) -- (8,-1.732,1)
-- (8,0,0)
(8,-1.732,1) -- (8,-1.732,.9) -- (10,-1.732,.9) -- (10,0,-.1) -- (10,0,0) (10,-1.732,.9) -- (10,-1.732,1);
% fourth divider \draw[fill=white] (10,-.4,-.5) -- (11,-.4,-.5) -- (11,-.4,.25) --
(10,-.4,.25) -- (10,-.4,-.5)
(11,-.4,.25) -- (11,.4,.25) -- (10,.4,.25) -- (10,-.4,.25)
(11,.4,.25) -- (11,.4,-.5) -- (11,-.4,-.5);
\begin{scope}[x={(0.866cm,-0.5cm)},y={(0,1cm)}] \draw (6,0,1) circle (.94)
(6,0,1) circle (.9);
\end{scope}
\begin{scope}[x={(0.866cm,-0.5cm)},y={(-.73cm,.077cm)}] \draw[fill=white] (9,1) circle (.94)
(9,1) circle (.9);
\end{scope}
% fiber exit \draw (11,-.05,.05) -- (11,.05,.05) --
(11,.05,-.05) -- (11,-.05,-.05) -- (11,-.05,.05);
\draw[thick] (10.95,0,0) to[out=-30,in=180] (12,1,-1); \end{tikzpicture} \end{document} </m>
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