What can Matlab do? What the following Matlab code does is playing the piano music of Cripple Pachebel's Canon. You can have a try if you have Matlab installed on your computer.% Cripple Pachebel's Canon on Matlab % Have fun fs = 44100; % sample rate dt = 1/fs; T16 = 0.125; t16 = [0:dt:T16]; [temp k] = size(t16); t4 = linspace(0,4*T16,4*k); t8 = linspace(0,2*T16,2*k); [temp i] = size(t4); [temp j] = size(t8); % Modification functions mod4 = sin(pi*t4/t4(end)); mod8 = sin(pi*t8/t8(end)); mod16 = sin(pi*t16/t16(end)); f0 = 2*146.8; %...

We've seen some neat interactive HTML5 infographics before -- but the periodic table, for example, doesn't really care that much about time.Visual representation of time introduces numerous complications. Traditional ways of representing time visually were, roughly speaking, translations of dimension-type, from temporal to spatial; the mapping selected would depend on what kind of temporal relation was meaningful for the particular application. For example, circles represent cyclical behavior; lines represent development; trees represent evolutionary history; and so forth. New media change the...

Accessibility for people with disabilities is a legal responsibility in many countries. It's also the right thing to do, and one of the characteristics distinguishing professional developers from the WWWs: WYSIWYG-wielding wannabes. But for many, accessibility has been a somewhat black art, requiring adding extra stuff to your code like alt text, table summaries, ARIA information that can be difficult to test by developers who are not assistive technology users themselves.The arrival of HTML5 has further muddied the water. For some, HTML5 saves the world. For others – including many acc...