Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:34Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
468K
CaCO₃ → CaO + CO₂
\frac{2}{2} \sum_{i=1}^{n} i^{2}
289K
∑_{k=1}^{n} k = n(n+1)/2
278K
e^{i\pi} + 1 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
339K
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
177K
∂x/∂r = 4x
∑_{k=1}^{n} k = n(n+1)/2
121K
det| 9 4 ; 1 10 | = 86
399K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
316K