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Pure Math
Structures and proofs—algebra, number theory, topology, and geometry.
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3718. Smallest Missing Multiple of K
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How Bernoulli Solved 1+1/2+1/3+1/4+…=?
3+ week, 12+ hour ago (39+ words) Some ideas in math look simple on the surface but hide a surprising twist underneath. The harmonic series is one of them. It looks like an easy sum of …...
THE TRAPEZOIDAL-PARALLELEPIPEDAL TRIANGLE
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You Know the Pythagorean Theorem, But Do You Really Understand It?
3+ week, 5+ day ago (1544+ words) Exploring the Pythagorean Theorem Note: Please switch to dark mode for a more immersive experience. 1.1 Introduction As arguably the most famous single theorem in mathematics due to its simplicity …...
PWC 386 All Your Base Are Belong to Rational Numbers
4+ week, 1+ day ago (295+ words) We have a couple of math problems for this week's challenge tasks. Let's set the mood with Paul Simon's song, "When Numbers Get Serious", from the under-rated 1983 album, Hearts and Bones. You are given a string representing a number, and…...