Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:50Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{6}{1} \sum_{i=1}^{n} i^{2}
\frac{4}{6} \sum_{i=1}^{n} i^{2}
289K
∂x/∂θ = 8x
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
339K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
177K
3φ² + 4φ + 2 = 0
∫₀^∞ e^(-t²) dt = √π / 2
358K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
121K
5ω² + 6ω + 0 = 0
det| 2 7 ; 7 3 | = -43
399K
∫₀^∞ e^(-α²) dα = √π / 2
316K
∫₀^∞ e^(-θ²) dθ = √π / 2
∇²θ = 0
e^{i\pi} + 1 = 0