Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:09Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
CaCO₃ → CaO + CO₂
e^{i\pi} + 1 = 0
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
339K
∂x/∂r = 4x
∑_{k=1}^{n} k = n(n+1)/2
358K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\frac{2}{2} \sum_{i=1}^{n} i^{2}
399K
∫₀^∞ e^(-ψ²) dψ = √π / 2
316K