Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 16:10Z
∇ × E = −∂B/∂t
∑_{k=1}^{n} k = n(n+1)/2
479K
\frac{8}{9} \sum_{i=1}^{n} i^{2}
F = ma
det| 9 4 ; 1 10 | = 86
191K
10n² + 4n + 5 = 0
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
153K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
12x² + 6x + 5 = 0