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... or the 0.5 pir^2 and 0.5 gt^2 link, it's really eye opening to people who did not quite /get/ the math. Math, in educational sense, (not in the purist proof
by makmanalp 16y ago
... or the 0.5 pir^2 and 0.5 gt^2 link, it's really eye opening to people who did not quite /get/ the math. Math, in educational sense, (not in the purist proofs sense) is all about seeing the links between things. Geometry and calculus are fundamentally related. We're still stuck teaching kids "sohcahtoa".
- jacobolus 16y agoYup, we’d be better off if we had a name for cosine that clearly implied "x coordinate", and a better name for sine that implied "y coordinate", (or at the very least, were shorter to spell and easier to say) and just did away with tangent, secant, etc. altogether, at least for basic pedagogy (1/sin(x) is almost always way clearer than csc(x)). Then we could make up a good name for the 2-argument arctangent function that inverts the function f(x) = cos(x), sin(x), and call it something much more intuitive than arctan2. Everyone would be much better off.