Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 16:22Z
det| 6 2 ; 7 7 | = 28
\oint_C \vec{F}\cdot d\vec{r} = 0
479K
∫₀^∞ e^(-x²) dx = √π / 2
\lim_{t\to 0} \frac{\sin t}{t} = 1
102K
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
264K
∑_{k=1}^{n} k = n(n+1)/2
276K
d/dψ [ψ^7] = 7ψ^6
\binom{n}{k} = \frac{n!}{k!(n-k)!}
250K
F = G m₁m₂ / r²
det| 7 4 ; 4 8 | = 40
62K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
\binom{n}{k} = \frac{n!}{k!(n-k)!}
164K