Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:27Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∫₀^∞ e^(-t²) dt = √π / 2
46K
CaCO₃ → CaO + CO₂
e^{i\pi} + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
177K
∑_{k=1}^{n} k = n(n+1)/2
358K
det| 2 6 ; 0 3 | = 6
316K
det| 9 4 ; 1 10 | = 86
11K
det| 4 2 ; 6 5 | = 8
387K