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% NCM   M-files and data files for use with 
% "Numerical Computing with MATLAB", (c) 2004, Cleve Moler. 
% 
% See also NCMGUI, BLACKJACK, CENSUSGUI, EIGSVDGUI, FERN, FFTGUI, FLOATGUI, 
% FZEROGUI, INTERPGUI, LORENZGUI, LUGUI, PDEGUI, PENNYMELT, QUADGUI, RANDGUI, 
% SWINGER, TOUCHTONE, WALKER, WAVES, BSLASHTX, FFTTX, FMINTX, FZEROTX, LUTX, 
% MEMBRANETX, ODE23TX, RANDTX, RANDNTX, QUADTX, PCHIPTX, SPLINETX 
% 
% "gui" files, interactive demonstrations 
% 
%   ncmgui      Master "gui".   
%   blackjack   Use random numbers in Monte Carlo simulation. 
%   censusgui   Try to predict the US population in the year 2010. 
%   eigsvdgui   Demonstrate computation of eigenvalues and singular values. 
%   fern        Fractal fern. 
%   fftgui      Demonstration of finite fourier transform. 
%   floatgui    Show structure of floating point numbers. 
%   fzerogui    Demonstrate scalar nonlinear zero finding. 
%   interpgui   Behavior of interpolating functions. 
%   lorenzgui   Plot the orbit around the Lorenz chaotic attractor. 
%   lugui       Gaussian elimination demonstration. 
%   pdegui      Demonstrate soluton of model partial differential equations. 
%   pennymelt   Heat a penny. 
%   pivotgolf   Pivot picking golf. 
%   quadgui     Demonstrate numerical evaluation of a definite integral. 
%   randgui     Monte carlo computation of pi. 
%   swinger     Classic double pendulum. 
%   touchtone   Use FFT to analyze touchtone dialing. 
%   walker      Human gait. 
%   waves       Wave equation in one and two space dimensions. 
% 
% "tx" files, textbook versions of MATLAB functions 
%   bslashtx    Solve linear system (backslash). 
%   ffttx       Fast finite fourier transform. 
%   fmintx      Minimize function of one variable. 
%   fzerotx     Find a zero of a function of one variable. 
%   lutx        Triangular factorization. 
%   membranetx  Eigenfunctions of the L-membrane. 
%   ode23tx     Solve non-stiff differential equations. 
%   randtx      Uniform random number generator. 
%   randntx     Normal random number generator. 
%   quadtx      Evaluate definite integral numerically. 
%   pchiptx     Piecewise cubic hermite interpolant. 
%   splinetx    Spline interpolant. 
% 
% Miscellaneous M-files 
%   bizcard     Future version of The MathWorks business card. 
%   brownian    Two-dimensional random walk. 
%   circlegen   Generate approximate circles. 
%   crypto      Cryptography example. 
%   encrypt     Apply crypto to a text file. 
%   digraph     Generate and analyze text digraph frequency matrix. 
%   finitefern  Finite fractal fern. 
%   fibnum      Fibonacci number. 
%   fibonacci   Fibonacci sequence. 
%   fftmatrix   Plot columns of the FFT matrix. 
%   flame       Increasing radius of a spherical flame. 
%   goldfract   Golden ratio continued fraction. 
%   goldrect    Golden rectangle. 
%   golub       Badly conditioned integer test matrices. 
%   greetings   Seasonal holiday fractal. 
%   imagesvd    Principle component analysis of images. 
%   inregion    Points inside a polygonal region in the plane. 
%   interp2dgui Behavior of periodic parametric curves. 
%   qrsteps     Orthogonal-triangular decomposition. 
%   pagerank    Google's PageRank. 
%   pagerankpow PageRank by power method. 
%   piecelin    Piecewise linear interpolation. 
%   polyinterp  Polynomial interpolation. 
%   powersin    Power series for sin(x). 
%   primespiral Ulam's prime number spiral. 
%   randmcg     Multiplicative congruential random number generator. 
%   randssp     Parameters used by IBM's Scientific Subroutine Package. 
%   randncond   Condition of random matrices. 
%   rungeinterp Runge's polynomial interpolation example. 
%   stegano     Investigate steganography in the default image. 
%   sunspotstx  Updated version of toolbox/matlab/demos/sunspots.m. 
%   surfer      Create the adjacency matrix of a portion of the Web. 
%   threenplus1 The 3n+1 sequence. 
%   tridisolve  Solve tridiagonal system of equations. 
%   vandal      Exercise: what does this program do? 
% 
% Data files 
%   elnino.dat 
%   gettysburg.txt 
%   longley.dat 
%   harvard500.mat 
%   membrane.mat 
%   touchtone.mat 
%   fern.png 
%   walker.mat