Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:58Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
46K
det| 12 9 ; 5 13 | = 111
468K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
det| 5 2 ; 3 6 | = 24
289K
∑_{k=1}^{n} k = n(n+1)/2
278K
∂x/∂θ = 8x
det| 9 5 ; 1 10 | = 85
339K
3φ² + 4φ + 2 = 0
det| 4 8 ; 3 5 | = -4
358K
det| 7 4 ; 4 8 | = 40
121K