Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 22:35Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{2}{2} \sum_{i=1}^{n} i^{2}
384K
det| 11 9 ; 4 12 | = 96
\binom{n}{k} = \frac{n!}{k!(n-k)!}
259K
∇ × E = −∂B/∂t
det| 7 4 ; 4 8 | = 40
305K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
57K
5z² + 5z + 0 = 0
\frac{3}{2} \sum_{i=1}^{n} i^{2}
293K
∑_{k=1}^{n} k = n(n+1)/2
110K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
300K
\frac{2}{2} \sum_{i=1}^{n} i^{2}
34K