The Math Behind Endless Patterns
September 8, 2025
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10:00Now PlayingThe Math Behind Endless Patterns
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as posted by the channelIn this StarTalk Plus conversation, host Neil deGrasse Tyson speaks with Grant Sanderson (creator of the 3Blue1Brown channel) about why the square root of negative one, i, is genuinely useful. Grant shows how complex numbers naturally describe cycles, phase, and frequency, which is why they appear in electrical engineering, signal processing, and quantum mechanics. They discuss why the word “imaginary” is misleading, how complex numbers grew from attempts to solve cubic equations, and how the unit circle and Euler’s formula connect rotation with waves. The goal is simple: replace mystery with understanding.
From 'Tackling the Biggest Unsolved Problems in Math with 3Blue1Brown'
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