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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12 December 2014/Chebfun Users Day, Tuesday 17 March 2015 at Oxford

The Chebfun team plans to host our first Chebfun User's Day on March 17, 2015 at the beautiful new Andrew Wiles Building of Oxford University.
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12 December 2014/What's new in Chebfun Version 5.1

We are pleased to announce the release of Chebfun Version 5.1 for numerical computing with 1D and 2D functions.

Chebfun—numerical computing with functions

Latest news

12 December 2014/Chebfun Users Day, Tuesday 17 March 2015 at Oxford

12 December 2014/What's new in Chebfun Version 5.1

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