Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:12Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∫₀^∞ e^(-r²) dr = √π / 2
46K
det| 7 4 ; 4 8 | = 40
468K
CaCO₃ → CaO + CO₂
det| 9 6 ; 0 10 | = 90
289K
e^{i\pi} + 1 = 0
∂x/∂r = 4x
\oint_C \vec{F}\cdot d\vec{r} = 0
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
∫₀^∞ e^(-n²) dn = √π / 2
399K
\frac{8}{7} \sum_{i=1}^{n} i^{2}
316K
det| 12 4 ; 4 13 | = 140
det| 4 7 ; 2 5 | = 6
387K
∑_{k=1}^{n} k = n(n+1)/2