Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:13Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
CH₄ + 2O₂ → CO₂ + 2H₂O
46K
det| 3 6 ; 0 4 | = 12
468K
CaCO₃ → CaO + CO₂
∫₀^∞ e^(-r²) dr = √π / 2
289K
∑_{k=1}^{n} k = n(n+1)/2
278K
e^{i\pi} + 1 = 0
det| 7 2 ; 7 8 | = 42
339K
det| 12 9 ; 5 13 | = 111
177K
∂x/∂r = 4x
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O