Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 17:42Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
iħ ∂ψ/∂t = Ĥψ
Fe₂O₃ + 3CO → 2Fe + 3CO₂
278K
3r² + 6r + 7 = 0
det| 5 2 ; 3 6 | = 24
339K
det| 9 4 ; 1 10 | = 86
358K
det| 7 9 ; 1 8 | = 47
121K
∑_{k=1}^{n} k = n(n+1)/2
399K
∑_{k=1}^{n} k = n(n+1)/2
11K