Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:10Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
46K
CaCO₃ → CaO + CO₂
det| 9 6 ; 7 10 | = 48
278K
e^{i\pi} + 1 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
339K
det| 7 4 ; 4 8 | = 40
177K
∂x/∂r = 4x
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\frac{8}{7} \sum_{i=1}^{n} i^{2}
399K
∫₀^∞ e^(-ψ²) dψ = √π / 2
316K
det| 1 4 ; 3 2 | = -10
387K