Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:30Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
CaCO₃ → CaO + CO₂
∑_{k=1}^{n} k = n(n+1)/2
289K
e^{i\pi} + 1 = 0
det| 7 4 ; 4 8 | = 40
339K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
177K
∂x/∂r = 4x
Fe₂O₃ + 3CO → 2Fe + 3CO₂
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H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
399K
\frac{8}{6} \sum_{i=1}^{n} i^{2}
316K
det| 12 4 ; 4 13 | = 140
\lim_{α\to 0} \frac{\sin α}{α} = 1
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det| 4 8 ; 3 5 | = -4
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