Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 22:37Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
384K
det| 12 9 ; 5 13 | = 111
385K
det| 11 9 ; 4 12 | = 96
∫₀^∞ e^(-t²) dt = √π / 2
259K
∇ × E = −∂B/∂t
det| 10 7 ; 3 11 | = 89
305K
5z² + 5z + 0 = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
293K
det| 9 4 ; 1 10 | = 86
300K