Examples — Recent

This is a tikz-drawn facsimile for D. J. Griffith's script r notation, used in his book Introduction to Electrodynamics. Feel free to use the code as you will, don't bother mentioning my name when doing it.

Este diagrama, realizado con órdenes de los paquetes TiKZ/PGF y CIRCUITIKZ, muestra un convertidor de señal analógica a digital del tipo Sigma Delta de Primer Orden. La entrada analógica (\(v_i\)) cuya amplitud debe estar dentro del rango de -1 Vdc a +1 Vdc, se resta de la señal de un convertidor digital a analógico (DAC) de 1 bit, cuya salida inicialmente es cero. La diferencia se integra y se compara con la tensión de tierra (0 V). La señal de salida del comparador es "0" o "1" y a la salida del DAC se obtiene -1 V o +1 V, respectivamente. La señal de salida del comparador contiene un flujo de modulación por densidad de pulsos. El comparador se sincroniza con una señal de reloj de frecuencia varias veces más grande que la mayor de las frecuencias de la señal de entrada \(v_i\). La figura con su explicación está disponible en la página 221 del texto "Principles of Electronic Communication Systems, 4th Edition" de Louis Frenzel, Jr. editado por Mc Graw Hill en el año 2016, a partir del cual se hizo su adaptación.

A simple trick to decorate Theorem-like environments with poker suits QED symbols. I did not come up with this theorem decoration style (I've first seen it here) nor with the whole code (I salvaged it from TeX StackExchange and other sources over the years). This is just my current implementation of the code.

Flag of the United States of America, according to official government specifications

Esta es una rutina modificada del ejemplo publicado por Overleaf en este enlace https://es.overleaf.com/articles/espectro-de-ofdm/xxcsbsjjtbcb. Hay unas pocas diferencias relacionadas con el color de fondo y los bordes del gráfico, además del uso de la orden \addplot +[opciones] gnuplot [raw gnuplot] {}. El gráfico está basado en el que se muestra en la página 642 del texto "Digital Modulation Techniques, 2nd Edition" de la editorial Artech House, Inc. de Fuqin Xiong.

PDF accessibility requirements stipulate that word breaks must be represented explicitly in the PDF. However, TeX engines do not use space characters to separate words: they use interword glue. This project shows how you can use LuaTeX to replace interword glue with space characters and kerns without affecting the visual appearance of typeset text. To understand the difference this makes for users of accessibility software, listen to this sound recording made using Adobe Reader DC's Read Out Loud feature. It records the two lines of text in this project being read out loud, before and after converting glue to spaces. This is a plain TeX file compiled using LuaTeX. It is for experimental use only and not intended to be a full, production-quality solution. Primarily, it is designed to assist with understanding technical issues related to accessible PDFs. The Lua code in this project is based on the earlier Overleaf article Boxes and Glue: A Brief, but Visual, Introduction Using LuaTeX. Note This project uses its own simple and very minimal OpenType font loader derived from this code: http://wiki.luatex.org/index.php/Use_a_TrueType_font.

This article (17 pages) was written to accompany an Overleaf help item. It explores the meaning of underfull or overfull boxes and examines the calculation of badness using an \hbox with finite and infinite glues. We have tried to provide a range of examples to demonstrate various aspects of TeX engines’ box-construction behaviour and the underfull or overfull “diagnostic messages” issued by TeX engines during the box-creation process.

A horizontal stepped concept map.

日本語縦書き用のてんぷれーと A template for Japanese vertical text.