Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 17:24Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
46K
\frac{8}{7} \sum_{i=1}^{n} i^{2}
468K
iħ ∂ψ/∂t = Ĥψ
\binom{n}{k} = \frac{n!}{k!(n-k)!}
289K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
278K
3r² + 6r + 7 = 0
\lim_{β\to 0} \frac{\sin β}{β} = 1
339K
E = mc²
det| 9 4 ; 1 10 | = 86
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∑_{k=1}^{n} k = n(n+1)/2
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CH₄ + 2O₂ → CO₂ + 2H₂O
det| 3 6 ; 1 4 | = 6
det| 8 5 ; 0 9 | = 72
F = G m₁m₂ / r²
Fe₂O₃ + 3CO → 2Fe + 3CO₂