Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:20Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∫₀^∞ e^(-ψ²) dψ = √π / 2
468K
CaCO₃ → CaO + CO₂
\lim_{α\to 0} \frac{\sin α}{α} = 1
289K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
278K
e^{i\pi} + 1 = 0
CH₄ + 2O₂ → CO₂ + 2H₂O
177K
∂x/∂r = 4x
\lim_{r\to 0} \frac{\sin r}{r} = 1
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 12 4 ; 4 13 | = 140
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
387K
∑_{k=1}^{n} k = n(n+1)/2