Field Notes / Σ /sym/477c4b
id=13 · host=formula-vault.cloud · 2026-10-02 01:37Z
∑_{k=1}^{n} k = n(n+1)/2
det| 2 9 ; 6 3 | = -48
d/dt [t^11] = 11t^10
\frac{12}{2} \sum_{i=1}^{n} i^{2}
22K
det| 8 1 ; 3 9 | = 69
\lim_{ψ\to 0} \frac{\sin ψ}{ψ} = 1
\frac{6}{4} \sum_{i=1}^{n} i^{2}
454K
\frac{10}{3} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
192K
CH₄ + 2O₂ → CO₂ + 2H₂O
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
462K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
85K
\lim_{t\to 0} \frac{\sin t}{t} = 1
287K