Interesting MATLAB

本文展示了MATLAB (V4) 的各类有趣演示,涵盖XY和XYZ绘图、复杂函数3D绘图、动画、傅里叶分析、数据拟合、稀疏矩阵、游戏、3D对象展示等。还涉及SIMULINK仿真、优化工具箱、信号处理、神经网络、图像处理、模糊逻辑和软计算等方面的演示。

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Interesting MATLAB (V4) Demos

  • XY and XYZ plots
    • graf2d --> XY plots
    • graf2d2 --> XYZ plots (including volume)
    • hndlgraf --> handle graphics for line plots
    • hndlaxis --> handle graphics for axes
    • graf3d --> handle graphics for surface plots
  • Complex function 3D plots
    • grafcplx, cplxdemo --> complex XYZ plots
  • Contours
    • xpgallry quivdemo --> quiver
  • Animation
    • lorenz --> Lorenz attractor
  • MOVIE
    • xpmovie vibes --> L-shaped membrane
    • xpmovie crulspin --> spinning toroid (aka cruller)
    • xpmovie logospin --> spinning logo (L-shaped membrane)
    • sqdemo --> superquadrics
  • Fourier
    • sshow sunspots --> Fourier analysis of sunspot data
    • fourier --> Fourier series to approximate a square wave (Gibb effect)
    • fftdemo --> to extract two major components in a noise time series
  • Data fitting
    • sshow fitdemo --> nonlinear data fitting
    • census --> prediction of world population
    • spline2d --> spline for data fitting; data supplied by clicking mouse
  • Sparse matrix
    • sshow buckydem --> soccer ball (Buckminster Fuller geodesic dome)
    • sshow sparsity --> reordering of nodes
    • airfoil --> display sparse matrix from NASA airfoil
    • sepdemo --> orderings and separators for a finite element mesh
  • Games
    • xpbombs --> mine sweeping
    • life --> life game
    • bblwrap --> push me!
    • makemaze --> maze traverse
  • Gallery of 3D objects
    • knot
    • xpgallry klein1 --> Klein bottle
    • xpgallry tori4 --> four-linked unknotted tori
    • xpgallry spharm2 --> spherical harmonics
    • xpgallry cruller --> cruller (toroid)
    • xpklein --> Klein bottle
  • Other gallery
    • xpgallry modes --> 12 modes of the L-shaped membrane
    • xpgallry logo --> logo of TMW
    • xpquad --> various version of Barr's superquadrics
    • truss --> 12 natural bending mode of a 2D truss
    • travel --> travel salesman problem
    • wrldtrv --> great circle flight paths and distances
    • makevase --> make a vase by clicking
    • spinner --> screen saver of lines
    • delsqdem --> finite difference Laplacian on various domains
    • xpsound --> sound
    • funfuns --> zero finding, minimization, and integration of one-input functions
    • sshow e2pi --> e^pi or pi^e
    • quake --> earth quake wave visualization
    • penny --> visualization of a penny
    • imageext --> change colormap of images
    • earthmap --> various views of the earth
  • SIMULINK
    • vdp --> Van der Pol equations
    • bounce --> bouncing ball
    • simppend --> simple pendulum
    • onecart --> mass-spring system
    • dblcart1 --> mass-spring system (two masses)
    • dblpend1 --> double-pendulum system
    • dblpend2 --> double-pendulum system
    • penddemo --> inverted pendulum (slow!)
  • Optim. toolbox (help optim)
    • bandem --> expo-style banana optimization
    • bandemo --> command-line-style banana optimization
  • Signal processing toolbox (help signal)
    • sshow filtdem --> filter effect demo
    • sshow filtdem2 --> filter design demo
    • cztdemo --> FFT and CZT (two different Z-transform algorithms)
    • phone.m --> display time and frequency (and sound) of touch tone phone pad
    • sigdemo1.m --> time and freq. plots of discrete signals (mouse dragging)
    • sigdemo2.m --> time and freq. plots of continuous signals (mouse dragging)
    • filtdemo.m --> interactive design of lowpass digital filters
    • moddemo.m --> modulation scheme (voice signal)
    • sosdemo.m --> slice plot of a digital filter
  • NN toolbox (help nnets)
    • neural --> printed character recognition
  • IP toolbox (help images)
    • imdemo --> general demo
    • xpimage --> enhancement
    • firdemo --> 2D FIR filters
    • nlfdemo --> nonlinear filters
    • dctdemo --> DCT demo
  • Fuzzy Logic Toolbox:
    • invkine: inverse kinematics
    • juggler: ball juggling
    • fcmdemo: FCM
    • slcp: cart and pole
    • slcp1: cart and a varying pole
    • slcpp1: cart and two varying pole
    • sltbu: truck backup
    • slbb: ball and beam
    • fuzpcr: OCR (PCR?) using fuzzy logic (nearest neighbor classification)
  • Soft Computing Toolbox
    • taylor: polynomial fitting and Taylor series expansion
    • sddemo: demo of using steepest descent on the peaks function
    • percepdm: demo of single-layer perceptron
    • mlpdm1: Curve fitting using MLP
    • mlpdm2: XOR problem using MLP
    • rbfndm1: Curve fitting using RBFN
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