Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:14Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
46K
det| 12 2 ; 2 13 | = 152
468K
CaCO₃ → CaO + CO₂
e^{i\pi} + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
339K
det| 2 3 ; 5 3 | = -9
177K
∂x/∂r = 4x
det| 9 4 ; 1 10 | = 86
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
∫₀^∞ e^(-t²) dt = √π / 2
399K
∑_{k=1}^{n} k = n(n+1)/2
316K
det| 12 4 ; 4 13 | = 140
det| 5 6 ; 2 6 | = 18
11K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
387K
∑_{k=1}^{n} k = n(n+1)/2