Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:58Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\lim_{r\to 0} \frac{\sin r}{r} = 1
468K
CaCO₃ → CaO + CO₂
∑_{k=1}^{n} k = n(n+1)/2
278K
e^{i\pi} + 1 = 0
det| 7 9 ; 1 8 | = 47
177K
∂x/∂r = 4x
∑_{k=1}^{n} k = n(n+1)/2
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 7 4 ; 4 8 | = 40
399K
\frac{3}{2} \sum_{i=1}^{n} i^{2}
316K