Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 22:37Z
∑_{k=1}^{n} k = n(n+1)/2
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
384K
det| 7 4 ; 4 8 | = 40
385K
det| 11 9 ; 4 12 | = 96
\lim_{t\to 0} \frac{\sin t}{t} = 1
163K
∑_{k=1}^{n} k = n(n+1)/2
259K
∇ × E = −∂B/∂t
\lim_{x\to 0} \frac{\sin x}{x} = 1
305K
5z² + 5z + 0 = 0
\oint_C \vec{F}\cdot d\vec{r} = 0
293K
∫₀^∞ e^(-α²) dα = √π / 2
110K
det| 6 6 ; 3 7 | = 24
\binom{n}{k} = \frac{n!}{k!(n-k)!}
34K
2H₂ + O₂ → 2H₂O
\binom{n}{k} = \frac{n!}{k!(n-k)!}
368K