Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-18 17:41Z
∫₀^∞ e^(-r²) dr = √π / 2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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∑_{k=1}^{n} k = n(n+1)/2
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e^{i\pi} + 1 = 0
\oint_C \vec{F}\cdot d\vec{r} = 0
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
\lim_{α\to 0} \frac{\sin α}{α} = 1
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det| 7 4 ; 4 8 | = 40
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\lim_{ψ\to 0} \frac{\sin ψ}{ψ} = 1
det| 1 4 ; 3 2 | = -10
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\oint_C \vec{F}\cdot d\vec{r} = 0
det| 4 5 ; 0 5 | = 20
iħ ∂ψ/∂t = Ĥψ
d/dn [n^8] = 8n^7
7ω² + 2ω + 6 = 0