Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 22:30Z
det| 5 1 ; 4 6 | = 26
∑_{k=1}^{n} k = n(n+1)/2
12φ² + 4φ + 4 = 0
det| 7 4 ; 4 8 | = 40
339K
det| 2 7 ; 7 3 | = -43
177K
∫₀^∞ e^(-x²) dx = √π / 2
121K
∫₀^∞ e^(-θ²) dθ = √π / 2
399K
∑_{k=1}^{n} k = n(n+1)/2
316K