Numerical computing with functions

% Define two functions f = chebfun(@(x) sin(x.^2)+sin(x).^2, [0,10]); g = chebfun(@(x) exp(-(x-5).^2/10), [0,10]); % Compute their intersections rr = roots(f - g); % Plot the functions plot([f g]), hold on % Plot the intersections plot(rr, f(rr), 'o')

% The Dixon-Szego function f = @(x,y) (4-2.1*x.^2+ x.^4/3).*x.^2 ... + x.*y + 4*(y.^2-1).*y.^2; % Create a chebfun2 F = chebfun2(f, [-2,2,-1.25,1.25]); % Find the minimum and mark it [minf,minx] = min2(F); contour(F,30), hold on plot(minx(1),minx(2),'.w')

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21 July 2014/Volunteers for "Applications of Chebfun" minisymposium at ICIAM15?

We expect there will be a Chebfun-related minisymposium at the ICIAM meeting in Beijing in August 2015; likely speakers include myself, Stefan Guettel, Yuji Nakatsukasa, Sheehan Olver, Grady Wright, and Kuan Xu.
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21 June 2014/What's new in Chebfun Version 5

Today we are very pleased to announce the release of Chebfun Version 5. Chebfun Version 5 represents a complete rewrite of the Chebfun code and a transition from an svn repository at Oxford to a public repository and issue tracker at GitHub. We are a fully open source project. We invite all our users to learn more and get involved.

Chebfun—numerical computing with functions

Latest news

21 July 2014/Volunteers for "Applications of Chebfun" minisymposium at ICIAM15?

21 June 2014/What's new in Chebfun Version 5

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