Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:23Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\lim_{r\to 0} \frac{\sin r}{r} = 1
46K
CaCO₃ → CaO + CO₂
∫₀^∞ e^(-x²) dx = √π / 2
289K
∑_{k=1}^{n} k = n(n+1)/2
278K
e^{i\pi} + 1 = 0
det| 3 1 ; 7 4 | = 5
177K
∂x/∂r = 4x
det| 7 4 ; 4 8 | = 40
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
AgNO₃ + NaCl → AgCl↓ + NaNO₃
399K