Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:39Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
CaCO₃ → CaO + CO₂
e^{i\pi} + 1 = 0
\lim_{α\to 0} \frac{\sin α}{α} = 1
339K
det| 7 4 ; 4 8 | = 40
177K
∂x/∂r = 4x
det| 5 3 ; 7 6 | = 9
358K
\lim_{β\to 0} \frac{\sin β}{β} = 1
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 12 4 ; 4 13 | = 140
\frac{4}{5} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2