Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:37Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
CaCO₃ → CaO + CO₂
det| 4 2 ; 6 5 | = 8
289K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
278K
e^{i\pi} + 1 = 0
∂x/∂r = 4x
det| 12 2 ; 2 13 | = 152
358K
\lim_{r\to 0} \frac{\sin r}{r} = 1
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 12 4 ; 4 13 | = 140
det| 7 4 ; 4 8 | = 40
11K
det| 2 3 ; 5 3 | = -9
387K
∑_{k=1}^{n} k = n(n+1)/2