Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:52Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∫₀^∞ e^(-t²) dt = √π / 2
46K
\lim_{r\to 0} \frac{\sin r}{r} = 1
468K
CaCO₃ → CaO + CO₂
∑_{k=1}^{n} k = n(n+1)/2
289K
det| 12 1 ; 5 13 | = 151
278K
e^{i\pi} + 1 = 0
\frac{2}{2} \sum_{i=1}^{n} i^{2}
339K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
177K
∂x/∂r = 4x
det| 7 4 ; 4 8 | = 40
358K
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 12 4 ; 4 13 | = 140