The extension EPS stands for Encapsulated PostScript and is my favorite filetype for graphics and figures I produce using applications like Illustrator, Inkscape, and MATLAB. Here is how to insert EPS figures into a LaTex document. First you have to use the graphicx package so insert the following after the \documentclass tag and before the

As a physics professor, I’ve discovered that there is one thing more than any other that prevents students from finding success in my conceptual physics course, proficiency in algebra. My conceptual physics course include a significant amount of problem solving and students who start the course without sufficient mastery of algebra are like students starting

Below is code demonstrating how to typeset matrices in LaTeX using the array environment. \begin{displaymath} Q = \left( \begin{array}{ccc} q_{11} & q_{12} & q_{13} \\ q_{21} & q_{22} & q_{23} \\ q_{31} & q_{32} & q_{33} \\ \end{array} \right) \end{displaymath} The code generates a three column matrix with the contents of each column centered ({ccc}).

Interrupts are exactly what they sound like. They are events that cause a microcontroller’s CPU to stop executing a main program in order to execute a snippet of code on the side. As an example, here I discuss how the analog comparator on the ATmega328 (Arduino Uno) can be configured to generate an interrupt. Let

The Arduino IDE has many built-in commands to produce PWM outputs but directly setting the timer registers gives you much more flexibility and power. Below I show how to configure the 8-bit Timer/Counter2 on the ATmega328 (Ardunio UNO) to generate a 40 kHz square wave on Arduino digital pin 11. Why 40 kHz? I want