Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:04Z
4y² + 8y + 1 = 0
det| 1 7 ; 2 2 | = -12
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\lim_{ψ\to 0} \frac{\sin ψ}{ψ} = 1
468K
2H₂ + O₂ → 2H₂O
\frac{10}{7} \sum_{i=1}^{n} i^{2}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
339K
∑_{k=1}^{n} k = n(n+1)/2
144K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
97K
\lim_{ψ\to 0} \frac{\sin ψ}{ψ} = 1
276K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
256K