Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 23:27Z
d/dn [n^4] = 4n^3
∫₀^∞ e^(-r²) dr = √π / 2
384K
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
det| 9 6 ; 7 10 | = 48
163K
det| 5 3 ; 7 6 | = 9
259K
iħ ∂ψ/∂t = Ĥψ
\frac{2}{4} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
293K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
110K
det| 5 7 ; 5 6 | = -5
\frac{2}{2} \sum_{i=1}^{n} i^{2}
34K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 11 4 ; 5 12 | = 112
368K
2r² + 6r + 7 = 0