Editing Trigonometry
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[[[> http://upload.wikimedia.org/wikipedia/commons/thumb/9/9d/Circle-trig6.svg/338px-Circle-trig6.svg.png ]]] Trigonometry is, in theory, the study of triangles. The name itself talks about "measuring" (metric) and triangles (trig). However, it has now gone well beyond just triangles, and talks about a great deal of geometry in general. In particular, /sin/ and /cos/ (and related functions) turn up everywhere in engineering and physics, even though they are defined simply in terms of right-angled triangles. [[[ http://upload.wikimedia.org/wikipedia/commons/7/7d/Sin_drawing_process.gif _ |>> Plotting the /sin/ function <<| ]]] Images courtesy of the wikipedia commons. Stay tuned ... ---- * http://www.google.com/search?q=trigonometry * http://en.wikipedia.org/wiki/Trigonometry