Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 23:24Z
d/dn [n^4] = 4n^3
\frac{2}{2} \sum_{i=1}^{n} i^{2}
384K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
385K
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
det| 9 4 ; 1 10 | = 86
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iħ ∂ψ/∂t = Ĥψ
Fe₂O₃ + 3CO → 2Fe + 3CO₂
57K
\frac{2}{4} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
110K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
300K
det| 8 9 ; 4 9 | = 36
354K