Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 05:55Z
CaCO₃ → CaO + CO₂
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
46K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
\frac{2}{2} \sum_{i=1}^{n} i^{2}
289K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
339K
det| 12 4 ; 2 13 | = 148
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
121K
12r² + 4r + 0 = 0
det| 9 4 ; 1 10 | = 86
316K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
11K
∑_{k=1}^{n} k = n(n+1)/2
387K