Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:04Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{12}{6} \sum_{i=1}^{n} i^{2}
168K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
446K
3x² + 3x + 6 = 0
\frac{3}{2} \sum_{i=1}^{n} i^{2}
144K
∑_{k=1}^{n} k = n(n+1)/2
371K
∇²t = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
259K
7z² + 2z + 0 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
224K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
354K
\frac{6}{7} \sum_{i=1}^{n} i^{2}
70K