Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:42Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\lim_{x\to 0} \frac{\sin x}{x} = 1
46K
∑_{k=1}^{n} k = n(n+1)/2
468K
CaCO₃ → CaO + CO₂
det| 2 8 ; 7 3 | = -50
289K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
278K
e^{i\pi} + 1 = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
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∂x/∂r = 4x
det| 4 2 ; 6 5 | = 8
358K
det| 7 4 ; 4 8 | = 40
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O