Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 05:58Z
CaCO₃ → CaO + CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
468K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
289K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
CH₄ + 2O₂ → CO₂ + 2H₂O
177K
det| 12 4 ; 2 13 | = 148
det| 9 4 ; 1 10 | = 86
358K
∑_{k=1}^{n} k = n(n+1)/2
121K
12r² + 4r + 0 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
399K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
316K
∫₀^∞ e^(-β²) dβ = √π / 2
Fe₂O₃ + 3CO → 2Fe + 3CO₂
11K
ω = 2πf
e^{i\pi} + 1 = 0
5r² + 8r + 5 = 0