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Intriguing integrals: Part I
What's the integral of
? If you're up to speed with your calculus, you can probably rattle the answer off by heart. But can you prove it?
introduces an ingenious method for deriving the integral from first principles.
Intriguing integrals: Part II
Coming to think of it, is the standard formula for the integral of
really the best one?
makes an interesting case that it is not.
Solving quadratics in pictures
How to derive the famous quadratic formula from pictures, just like the Babylonians did.
Maths in a minute: Euclid's axioms
Five basic facts from the father of geometry.
So you think you can add up?
Why do we add fractions the way we do? A very close look at addition reveals the answer — and it also works...
Outer space: Where to stand to look at statues
John D. Barrow tells us how to get the best view!
Trisecting an angle with origami
How to solve an ancient problem in a few folds.
The philosophy of cosmology
Can philosophy help explain our Universe?
Tweets by @plusmathsorg
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