Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:33Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{6}{1} \sum_{i=1}^{n} i^{2}
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
278K
∂x/∂θ = 8x
det| 7 9 ; 1 8 | = 47
177K
det| 7 4 ; 4 8 | = 40
121K
∑_{k=1}^{n} k = n(n+1)/2
316K
∑_{k=1}^{n} k = n(n+1)/2
387K