Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-18 23:10Z
\oint_C \vec{F}\cdot d\vec{r} = 0
∫₀^∞ e^(-x²) dx = √π / 2
297K
∫₀^∞ e^(-r²) dr = √π / 2
det| 4 7 ; 2 5 | = 6
138K
7z² + 5z + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
67K
∑_{k=1}^{n} k = n(n+1)/2