Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:37Z
∑_{k=1}^{n} k = n(n+1)/2
∫₀^∞ e^(-r²) dr = √π / 2
46K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
det| 12 1 ; 5 13 | = 151
289K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
278K
∂x/∂θ = 8x
∑_{k=1}^{n} k = n(n+1)/2
339K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
177K
3φ² + 4φ + 2 = 0
CH₄ + 2O₂ → CO₂ + 2H₂O
358K
5ω² + 6ω + 0 = 0
\oint_C \vec{F}\cdot d\vec{r} = 0
399K
∫₀^∞ e^(-θ²) dθ = √π / 2
det| 9 4 ; 1 10 | = 86
11K
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
387K
e^{i\pi} + 1 = 0