Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:42Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{6}{1} \sum_{i=1}^{n} i^{2}
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
289K
∂x/∂θ = 8x
det| 9 6 ; 0 10 | = 90
339K
det| 5 9 ; 7 6 | = -33
358K
∑_{k=1}^{n} k = n(n+1)/2
121K
det| 7 4 ; 4 8 | = 40
11K