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Latest articles

New Riemann Sums applet

applet for finding area under curve
Here's some background on the new Riemann Sums applet I added to IntMath. You can see how we find areas under curves using rectangles... more »

Arc length of a spiral around a paraboloid

paraboloid spiral
What is the length of a spiral around a paraboloid? This is an interesting application of integral calculus, involving an environmentally friendly cooker design... more »

From brain injury to math genius: Jason Padgett

Padgett image Jason Padgett was attacked and savagely beaten. He had severe concussion, but an amazing new ability to "see the world through the lens of geometry"... more »

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