Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:53Z
∑_{k=1}^{n} k = n(n+1)/2
det| 2 3 ; 5 3 | = -9
46K
det| 9 4 ; 1 10 | = 86
468K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
\lim_{t\to 0} \frac{\sin t}{t} = 1
289K
∂x/∂θ = 8x
\lim_{x\to 0} \frac{\sin x}{x} = 1
339K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
177K
3φ² + 4φ + 2 = 0
\lim_{t\to 0} \frac{\sin t}{t} = 1
358K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
121K
det| 8 9 ; 4 9 | = 36
316K
\frac{8}{6} \sum_{i=1}^{n} i^{2}
11K
∑_{k=1}^{n} k = n(n+1)/2
387K