Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:33Z
∑_{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
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
278K
∂x/∂θ = 8x
\frac{12}{6} \sum_{i=1}^{n} i^{2}
339K
det| 7 4 ; 4 8 | = 40
177K
3φ² + 4φ + 2 = 0
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
121K
5ω² + 6ω + 0 = 0
∑_{k=1}^{n} k = n(n+1)/2
399K
\frac{8}{6} \sum_{i=1}^{n} i^{2}
316K
∫₀^∞ e^(-θ²) dθ = √π / 2