Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:33Z
∑_{k=1}^{n} k = n(n+1)/2
det| 7 4 ; 4 8 | = 40
468K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
278K
∂x/∂θ = 8x
CH₄ + 2O₂ → CO₂ + 2H₂O
339K
3φ² + 4φ + 2 = 0
\oint_C \vec{F}\cdot d\vec{r} = 0
358K
\oint_C \vec{F}\cdot d\vec{r} = 0
121K
5ω² + 6ω + 0 = 0
AgNO₃ + NaCl → AgCl↓ + NaNO₃
316K
∫₀^∞ e^(-θ²) dθ = √π / 2