Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:56Z
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
46K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
468K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
det| 11 4 ; 5 12 | = 112
289K
∂x/∂θ = 8x
det| 12 2 ; 2 13 | = 152
339K
det| 9 6 ; 7 10 | = 48
177K
3φ² + 4φ + 2 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
358K
det| 9 4 ; 1 10 | = 86
399K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
316K
∑_{k=1}^{n} k = n(n+1)/2
11K