RUDE NUMBERS

Cosine was invented because sine needed a best friend for balance.

✗ FAKE

Cosine is defined as the sine of the complementary angle, and the name reflects that. It developed alongside sine in trigonometry, and neither was invented as a companion.

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The number 0.5 exists because humans can’t commit to whole decisions.Binary code uses only 0s and 1s to represent data — proof that computers are simple, humans are not.The first theorem was discovered by someone trying to win an argument at dinner.The first inequality sign was invented by someone who refused to be equal. Drama in symbols.The term 'algorithm' comes from the Persian mathematician Al-Khwarizmi — the man computers silently thank every day.The golden ratio was discovered because humans love pretending aesthetics are scientific.See all Rude Numbers facts →

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