## Overview

Here is a typical sinusoid:

The most general mathematical formula for a

*sinusoid* is
\(x(t)=A \cos(2 \pi f_0 t + \phi)\)

The goal of this demo is to learn how to sketch a sinusoid given
its formula and to write the formula of a sinusoid given its plot.

## Tutorial

Here is a quick tutorial on how to
sketch a plot from an equation, and

here is a tutorial on going the other way.

## MATLAB

Here is how to plot sines in MATLAB.

## Sine Drill

This will take you to
MATLAB
GUI (graphical user interface) that tests your
ability to go from plots of cosine waves to equations.