Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:58Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{8}{6} \sum_{i=1}^{n} i^{2}
468K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
det| 9 4 ; 1 10 | = 86
289K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
278K
∂x/∂θ = 8x
\frac{2}{2} \sum_{i=1}^{n} i^{2}
177K
3φ² + 4φ + 2 = 0
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
358K
\lim_{t\to 0} \frac{\sin t}{t} = 1
399K
det| 12 9 ; 5 13 | = 111
11K