`e^(ix) = cos x + i sin x`
See wikipedia.
`e^(ipi) + 1 = 0`
See wikipedia.
`e = sum_(n = 0)^infty 1/(n!) = 1/1 + 1/1 + 1/(1 * 2) + 1/(1 * 2 * 3) + cdots`
See wikipedia.
`zeta(s) = sum_(n=1)^infty 1/(n^s) = prod_(p bbb " prime") 1/(1 - p^-s)`
See wikipedia.
See also Riemann hypothesis, one of the Millennium Prize Problems: wikipedia.
Sum | Wikipedia |
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` 1 + 1 + 1 + 1 + cdots = -1/2 = zeta(0) ` | link |
` 1 - 1 + 1 - 1 + cdots = 1/2 ` | link |
` 1 + 2 + 3 + 4 + cdots = -1/12 = zeta(-1) ` | link |
` 1 - 2 + 3 - 4 + cdots = 1/4 ` | link |
` 1 + 2 + 4 + 8 + cdots = -1 ` | link |
` 1 - 2 + 4 - 8 + cdots = 1/3 ` | link |