Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 22:42Z
det| 5 1 ; 4 6 | = 26
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
278K
12φ² + 4φ + 4 = 0
∫₀^∞ e^(-x²) dx = √π / 2
121K
∑_{k=1}^{n} k = n(n+1)/2
316K
det| 12 1 ; 5 13 | = 151
11K