Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 03:50Z
∇ × E = −∂B/∂t
det| 9 4 ; 1 10 | = 86
168K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\oint_C \vec{F}\cdot d\vec{r} = 0
144K
∂x/∂n = 6x
\lim_{x\to 0} \frac{\sin x}{x} = 1
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
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∑_{k=1}^{n} k = n(n+1)/2
354K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
70K
det| 7 6 ; 1 8 | = 50
402K