Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-20 05:25Z
∂r/∂ψ = 3r
det| 1 4 ; 2 2 | = -6
445K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 7 4 ; 4 8 | = 40
322K
∑_{k=1}^{n} k = n(n+1)/2
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∂ψ/∂φ = 4ψ
det| 10 3 ; 5 11 | = 95
\binom{n}{k} = \frac{n!}{k!(n-k)!}
405K
\frac{1}{8} \sum_{i=1}^{n} i^{2}
\oint_C \vec{F}\cdot d\vec{r} = 0
41K