Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:08Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∫₀^∞ e^(-r²) dr = √π / 2
46K
CaCO₃ → CaO + CO₂
det| 12 1 ; 5 13 | = 151
289K
\lim_{r\to 0} \frac{\sin r}{r} = 1
278K
e^{i\pi} + 1 = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
177K
∂x/∂r = 4x
det| 3 6 ; 0 4 | = 12
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
399K
\frac{8}{6} \sum_{i=1}^{n} i^{2}
316K
det| 12 4 ; 4 13 | = 140
det| 9 4 ; 1 10 | = 86
11K
\frac{3}{2} \sum_{i=1}^{n} i^{2}
387K
∑_{k=1}^{n} k = n(n+1)/2