Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:29Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
46K
∑_{k=1}^{n} k = n(n+1)/2
468K
CaCO₃ → CaO + CO₂
det| 4 2 ; 6 5 | = 8
289K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
278K
e^{i\pi} + 1 = 0
det| 7 8 ; 4 8 | = 24
339K
det| 10 2 ; 3 11 | = 104
177K
∂x/∂r = 4x
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 12 4 ; 4 13 | = 140
∑_{k=1}^{n} k = n(n+1)/2