Matlab Example Programs and Utilities

ASCII art example

Convert a number from one base to another
Supports decimals, bases up to 36, only positive numbers

Better menu example
A simple alternative to MATLAB's menu command - centered and optional sizing

Bouncing ball game
A good example of animation and real-time user interaction

Compute the center of mass of an image
by treating each pixel as a point mass

Purpose: Create a centered MATLAB menu
Method: Create a timer that moves the menu after it is displayed
because MATLAB doesn't provide a way of positioning the menu.
This is kludgy, but it seems to work.

Electric forces in a system of particles - Coulomb's Law

Example of creating a movie (avi) file from a series of plots

Demonstrate symbolic math in MATLAB
Calculate the radius of curvature for trajectory equation
Calculate normal and tangential acceleration components

Example of reading a ~500,000 word dictionary into Matlab
This example loads all words into a cell array and keeps a track of
the count of the lengths and displays all words over 20 characters long

Example of reading an image, rotating it, and digitizing data from it.

Engage golf ball gun analysis/simulator
A GUI for setting parameters and displaying results of a 'shooter'

Example of creating a text file with a table of data

GPA calculator example
reads and writes text data files

Interactive image cropping
Prompts user for a file name of a file that contains one or more
images that are to be rotated and cropped. The user then clicks on the
corners of the images and Matlab extracts, rotates, crops, and
saves the sub-image(s).

Image processing edge detection example
Compares different algorithms

Image transparency example
Shows how to use and make a transparency matrix with an image

Demo of how to show a 3D trajectory on an image

Example of reading a movie (AVI) file
Displays a montage of individual frames in a figure window
and creates a file with a montage of frames and displays the file

Solution to a trough optimization problem
Includes surface and parameter plotting

Fifteen Pendulums Swinging
Simulation with GUI showing fifteen pendulums swinging together
The lengths are such that they make neat visual patterns near 0, 30, and 60 seconds
This .m file requires the similarly named .fig file

A general solution for a box on incline with force and friction
Has routines for drawing straight and curved vectors

Example of creating a plot with time of day on the x axis

Plot a set of equations - interactive

Function to format a polynomial coefficient list as an equation text

Projectile motion with a target and drag - example from EF 102 2003

Example of importing data and plotting

Example of playing a song
Parses a text string of 'notes' and plays the song by generating the appropriate
frequency curves. Minimal documentation.

Approximate integral using composite simpson rule
http://en.wikipedia.org/wiki/Simpson's_rule

Simulation of a car 'crash' with extensive plotting

Demonstrate playing a music file with a fade in and out

Simple space invaders game
Example of simple real-time user interaction
Ugly code with minimal comments

Example of using a switch statement with a menu

Example of working with text
Displays the complete lyrics to '99 bottles of beer...'

Example of centering text in a figure

Example of using a timer to simulate a clock ticking

Solve projectile motion trajectory equation for any variable

A large truss analysis program with many different examples
Creates plots of geometry, results, FBDs, and equations

Example of a generalized function for drawing a vector
Uses a structure for specifying parameters

Example of how to create a web page with Matlab output
Has functions for putting tables, text, titles, and images on the page