MATLAB Programming/Bonus Chapters/MATLAB Easter Eggs

MATLAB is one of the very few professional software in the market now that included Easter Eggs in their products.

Here are the few known undocumented demo functions: Just type these commands and have a look for yourself:

All of this Easter Eggs were tested on MATLAB R2020a ( in not alphabetical order)

Have fun playing with the known Easter Eggs~ Note: To view the source code, use edit function followed by command name

Working Easter Eggs


Command	Description	Picture/Examples
cruller	Construct a cruller by revolving the eccentric ellipse defined by the function XYCRULL.	Cruller Render
date	Returns date as in dd-mmm-yyyy format	08-Aug-2022
sldemo_fuelsys	Simulations of Fault-Tolerant Fuel Control System Dashboard
funtool	A interactive graphing calculator that manipulates functions of a single variable.
sf_aircraft	Simulate the fuel injection system in aircraft
sf_newtons_cradle	Simulate Newton's cradle
teapotdemo	A demo that uses the famous Newell teapot to demonstrate MATLAB graphics features.
teapotGeometry	Data generates vertices, faces, and colors that represent the surface of the infamous Utah teapot.
graf3d	Demonstrate Handle Graphics for surface plots in MATLAB.
earthmap	Globe to represent the Earth's topography
soma	Precomputed solutions to Piet Hein's soma cube
somasols .	Generate complete solutions to the soma cube
clock	Returns a six element date vector containing the current time and date in decimal form: [year month day hour minute seconds]	1.0e+03 * 2.0220 0.0080 0.0070 0.0230 0.0360 0.0192
taxDemo(income)	Calculate the tax on income.
logo	Plot the L-shaped membrane logo with MATLAB(R) lighting.	Matlab Logo
membrane	Plot a 3-D colored surface of MATLAB(R) logos
spy	This function is actually to use to visualize sparsity pattern. When no input of argument is given, it will generate a image of the dogs. If typed in version prior to Matlab R2011a, it will show character White Spy from comics Spy vs. Spy
life	This is MATLAB's simulations of Conway's Game of Life. Whether cells stay alive, die, or generate new cells depends upon how many of their eight possible neighbors are alive. By using sparse matrices, the calculations required become astonishingly simple.
truss	Animation of a bending bridge truss. This demo animates 12 natural bending modes of a two-dimensional truss.
vibes	This demonstration solves the wave equation for the vibrations of an L-shaped membrane.	Matlab Vibes
makevase	Generate and plot a surface of revolution. The body-of-revolution corresponding to that line is plotted using the SURFL command.	MATLAB EASTER EGGS MAKEVASE
sf_cdplayer	Simulink model simulate the CD player.
xpbombs	Shows a game of Minesweeper , There are 13 bombs hidden in the mine field.	MATLAB Easter Eggs
lorenz	Plot the orbit around the Lorenz chaotic attractor.
travel	This demo animates the solution of the "Traveling Salesman" problem. (Limited to cities inside USA) The problem is to form a closed circuit of a number of cities while traveling the shortest total distance along the way.
fifteen	Shows a game of fifteen game puzzles A sliding puzzle of fifteen squares and sixteen slots. Solve the puzzle by sequentially lining all fifteen squares up, leaving the last square empty.
bucky	Connectivity graph of the Buckminster Fuller geodesic dome. (shows 60 coordinates)
sf_spectrum_analyzer	Simulation of measuring the Frequency Response of a System
census	Shows the extrapolated predicted populations in the United States
sf_angle_events	Simulate cranking and power output
ex_guide_timergui	Execute graphic updates at regular intervals
quivdemo	Superimpose QUIVER on top of a PCOLOR plot with interpolated shading.
sf_elevator	Simulations of elevators inside 9 storey buildings.
penny	Shows 3D render of a USA penny
matlab.ui.internal.toolstrip.Icon.showStandardIcons	Shows allstandard icons
knot	Compute the parametric representation of tube-like surfaces and displays the tube with SURF.
spharm2	This example shows how spherical harmonics, which are spherical versions of Fourier series, can be used to model the free oscillations of the Earth.
eml_asteroids	Play a game of Asteroids	Asteroids in MATLAB
eml_fire	Simulations of burning fire
sf_tetris2	'j', 'l' -- move left and right 'i', 'k' -- rotate left and right SPACE -- drop 'p' -- pause 'q' -- quit
ballode	Simulate a demo of a bouncing ball.
batonode	Simulate the motion of a thrown baton.
sf_semantics_hotel_checkin	Simulate Hotel Checkins
sf_traffic_light	Simulating traffic lights at intersections
sf_fitness	Simulate the smartwatch
klein1	This example shows how to generate a Klein bottle. A Klein bottle is a nonorientable surface in four-dimensional space. It is formed by attaching two Mobius strips along their common boundary.
xpklein	This example shows how to display a self-intersecting Klein bottle. A Klein bottle is a nonorientable surface in four-dimensional space. It is formed by attaching two Mobius strips along their common boundary.
brussode	Surface plots of brusselator
why	Randomly generated answers to life , universe and everything
iburgersode / burgersode	Burgers' equation solved as implicit ODE system
sf_stickslip	Stick - slip friction simulations	Sf stickslip - Simulink
sfediticon	Simulink icons that enable to create basic 16 * 16 icon editor
amp1dae	Stiff differential-algebraic equation (DAE) from electrical circuits
taylortool	A Taylor Series Approximation calculator
sf_climate_control	Simulate an environmental climate control (Temp and humidity) for a chamber
tori4	This example shows how to generate four linked unknotted tori by rotating four off-center circles.
ardemo	Interactive axes properties demonstration
rlc_gui	Interactive GUI showing the relationship between the physical parameters of common RLC circuits and the time and frequency responses of those circuits. * Low-pass RLC network * High-pass RLC network * Band-pass RLC network * Band-stop RLC network
sf_security	Demonstrations of security system of door, window and mention sensor in a home
sf_server	Display random numbers to serve the assigned clients
step	Shows a randomly generated stable Transfer Function Model
imagesc	Shows the images of a boy. To correct it , into correct orientation , type imagesc colormap(gray(32)); axis ij image off;
wernerboy	This example shows how to create Boy's surface
transpdemo	This example shows how to modify the transparency value for graphics objects to reveal structure that is obscured with opaque objects.
sf_car	Simulate car braking and throttle
sf_yoyo	Simulate yoyo up and down and the energy
sf_boiler	Simulation of temperature controller of boiler
eml_aero_radar	Radar demo to estimate aircraft position using Kalman Filters