Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:19Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
168K
det| 7 4 ; 4 8 | = 40
446K
3x² + 3x + 6 = 0
det| 11 9 ; 0 12 | = 132
371K
∇²t = 0
7z² + 2z + 0 = 0
det| 4 2 ; 5 5 | = 10
∑_{k=1}^{n} k = n(n+1)/2
218K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
354K
2H₂ + O₂ → 2H₂O