Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 06:01Z
∫₀^∞ e^(-x²) dx = √π / 2
∑_{k=1}^{n} k = n(n+1)/2
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det| 9 4 ; 1 10 | = 86
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det| 10 5 ; 3 11 | = 95
∑_{k=1}^{n} k = n(n+1)/2
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CaCO₃ → CaO + CO₂
∫₀^∞ e^(-φ²) dφ = √π / 2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}