Spherium by Andrew French

Wield the power of OpenGL and create ammonites, Klein bottles and curious spheria! (demo, printing, mathematics)

Hradial(r,n,L,Z,A)

LgivenN(N)

MgivenL(X)

Tricontf by Rich Pawlowicz

Contouring and filled contouring for unstructured 2D triangular meshes (image processing, mathematics, data exploration)

[varargout]=tricont(varargin);

[varargout]=tricontf(varargin);

tridemo.m

Harmonograph by Andrew French

An electronic construction of the amazing Victorian curiosity! (mathematics, gui, graphics)

Harmonograph

get_data_from_gui(handles)

ghmg( t, A, W, P, T )

Export figure to 3D interactive PDF by Ioannis Filippidis

Export figure as a U3D file or directly to 3D interactive graphics within a PDF. (3d, u3d, graphics)

[strmodelshading, strfaces_colors, strfaceshading, strcolor...

arclength(px,py,varargin)

axes_extremal_xyz(ax)

Spectrogram, STFT, with varied kinds of Plots by Shreyes

Plots STFT using line, Stem, Surface, Image. STFT calculation done using in built function (plotting stft, plotting spectrogram, signal processing)

spectrogram_multiplot(plot_type, data, varargin)

spectrogram_multiplot_demo.m

geom2d by David Legland

Geometry library for matlab. Performs geometric computations on points, lines, circles, polygons... (computational geometr..., mathematics, plan)

angle2Points(varargin)

angle3Points(varargin)

angleAbsDiff(angle1, angle2)

plot 2/3D vector(s) by Ioannis Filippidis

Plots 2D or 3D vectors at points, both provided as matrices of column vectors. (quiver, plot, mathematics)

quivermd(ax, x, v, varargin)

Bezier Curve Function by Prakash Manandhar

Vectorized function to calculate Bezier Curve (mathematics, graphics, curve generation)

BezierCurve(N, P)

Laplacian in 1D, 2D, or 3D by Andrew Knyazev

Sparse (1-3)D Laplacian on a rectangular grid with exact eigenpairs. (2d, 3d, laplacian)

laplacian(varargin)

Julia by Andrew French

Become a cyber explorer and use Julia to navigate the Fractal world! (fractal, mandlebrot, julia sets)

C=make_colour_matrix(A,cmap,NaN_colour)

[width,height,xwidth,xc,yc,N,funcstr,...

julia(varargin)

Spring-Mass-Damper system behavior analysis by Sulaymon Eshkabilov

Spring-Mass-Damper system behavior analysis for given Mass, Damping and Stiffness values. (control design, ode113, ode23t)

SMDode_linear(Mass,Damping, Stiffness)

SMDode Spring-Mass-Damper system behavior analysis by Sulaymon Eshkabilov

Spring-Mass-Damper system behavior analysis for given Mass, Damping and Stiffness values. (ode45, ode23tb, ode113)

SMDode(Mass,Damping, Stiffness)

Fast STL import function by Eric Trautmann

Function to import .stl geometry model files into matlab. (triangle, 3d, model)

varargout=import_stl_fast(filename,mode)

determine surface area and uncertainty from points in a plane by Mathias Anton

calculates the surface area and its uncertainty from coord's x,y and their uncertainties ux, uy (mathematics, measurement, surface area)

[A,uA]=flaeche(x,y,ux,uy)

Matlab, Nyquist, Power system, Plots, Nyquist plot. by satendra kumar

To get a appropriate Nyquist plot. (power system, demo, optimization)

lnyquist1(a,b,c,d,iu,w)

Ezimplot3: implicit 3D functions plotter by Gustavo Morales

Plots a 3D surface defined implicitly (3d ezplot, implicit functions, specialized plotting)

ezimplot3(varargin)

rotation by aasim Azooz

rotation of two dimensional shapes (graphics, measurement, mathematics)

[xx,yy]=rotation(x,y,theta)

plot_cc by Lang Withers

Makes a plot to visualize a sequence of complex numbers directly, as a "complex cylinder.". (specialized, plotting, complex plots)

...

test_cc.m

Linear Regression with Errors in X and Y by Travis Wiens

Calculates slope and intercept for linear regression of data with errors in X and Y. (statistics, slope, errors)

ellipse(Xc,Yc,dX,dY,N_p)

york_fit(X,Y,sigma_X,sigma_Y, r)

demo_york.m

Two Dimensional Surface Fitting Program by aasim Azooz

A two dimensional surface fitting program (optimization, mathematics, measurement)

[A,zzz]=fit2(a,x,y,z)

f=fitfit(a,x);

plotdata

domain coloring by Ankur Pawar

Visualization of complex function. (domain coloring, complex function, mathematics)

img=coolviz1(func)

img=coolviz2(func)

img=coolviz3(func)

vebyk by Rolf Sidler

vebyk performs ordinary kriging and can be easily adapted to other kriging methods. (kriging, 2d, approximation)

buildbigc3(position,anisotropy,nu,range)

buildsmallc3(position,anisotropy,nu,range)

covcalc(lag,nu,a)

smooth2a by Greg Reeves

Smooths a 2D matrix using a mean filter over a user-defined rectangle. Ignores and preserves NaNs. (2d, approximation, interpolation)

smooth2a(matrixIn,Nr,Nc)

2D Simpson's Integrator by Whayne Padden

Fully vectorised 2D integrator based on the Simpson's method (2d, integration, simpsons method)

simp2D(func,a,b,c,d,NX,NY)

Zero interval calculation by Marcelo Silva

This program finds an interval where the chosen function has a zero. (mathematics, graph, functions)

v=interval(fun,init,nmax,tol,graph)

Mandel121 by Dr. Jens Koopmann

Cool tool to zoom into the Mandebrot Set. 2/3D images are supported. (fractals, mandelbrot, mathematics)

[x,y,Zvalues]=dummy2(lowerR,higherR,lowerI,higherI,stepsR,M...

color_change(col,my_view,x,y,Zvalues,x_view,y_view,maxIter,...

load_coordinates

Grab 2D points by Nassim Khaled

This code is used to digitize 2d figures that you find in publications, journals, or simply scanned (grabb, mathematics, click)

C=sort_first_column_permute_second(A);

Help_about_Nassim_Grabit(varargin)

Nassim_Grabit0(varargin)

2D fast marching algorithm by Juan Cardelino

computation of distance maps using fast marching (fast marching, algorithm, eikonal)

T=fast_marching(data_points,siz,plot)

test_fm.m

Simulation of Color Noise by Abhirup Lahiri

The function is used to simulate color noise process using Euler-Maruyama Method (color, noise, differential equation...)

colornoise(a,b,T,N)

A simple min cut algorithm by Yohai Devir

Find a minimal cut in a graph keeping a set of vertices together (mincut, cut, min)

MinCut(SourceVertices, WeightedGraph)

Regular Polygons by Nima Moshtagh

Plots the regular polygon {N/d} with vertices on a circle of radius 'rad'. (regular polygon, graph, star polygon)

polygon(N, d, rad)

Integer order radial-2D Gaussian function. by Adam Wyatt

Generates a 'radial' Gaussian function in 2D of any positive integer order. (integer, radial, 2d)

gauss2D_R(X, Y, dx, dy, theta, order)

Plot 2D/3D Vector with Arrow by Rentian Xiong

This function plots a line vector with arrow head. (arrow, 3d, 2d)

vectarrow(p0,p1)

Fast retrieve line coordinates by Alejandro Sanchez-Crespo

Fast retrieve the (x,y) coordinates of a line, given the starting and ending points. (approximation, interpolation, 2d)

[x,y]=conect(Xstart,Xend,Ystart,Yend)

Contour Area Calculation by Phillip Tamchina

Calculates the area of contour regions. (contour, area, calculation)

area.m

smooth2 by Kelly Hilands

Smooths the data in a 2D matrix with a user-defined resolution. (approximation, interpolation, 2d)

smooth2(matrixIn, Nr, Nc)