Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:03Z
4y² + 8y + 1 = 0
2H₂ + O₂ → 2H₂O
Fe₂O₃ + 3CO → 2Fe + 3CO₂
289K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
339K
iħ ∂ψ/∂t = Ĥψ
Fe₂O₃ + 3CO → 2Fe + 3CO₂
399K
∑_{k=1}^{n} k = n(n+1)/2
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det| 4 5 ; 1 5 | = 15
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∑_{k=1}^{n} k = n(n+1)/2
97K
\lim_{β\to 0} \frac{\sin β}{β} = 1
338K
det| 7 4 ; 5 8 | = 36
276K
\oint_C \vec{F}\cdot d\vec{r} = 0
256K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
348K