Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 17:16Z
d/dθ [θ^5] = 5θ^4
∑_{k=1}^{n} k = n(n+1)/2
446K
\frac{2}{4} \sum_{i=1}^{n} i^{2}
\lim_{t\to 0} \frac{\sin t}{t} = 1
144K
d/dr [r^4] = 4r^3
7α² + 1α + 1 = 0
det| 12 3 ; 1 13 | = 153
\oint_C \vec{F}\cdot d\vec{r} = 0
218K
∂n/∂β = 5n
AgNO₃ + NaCl → AgCl↓ + NaNO₃
det| 5 5 ; 2 6 | = 20
det| 11 7 ; 0 12 | = 132