Math Dump /sym/93aaf5
id=289424 · host=jp.commstar.world · 2026-09-01 21:16Z
∑_{k=1}^{n} k = n(n+1)/2
det| 4 1 ; 6 5 | = 14
402K
\frac{3}{1} \sum_{i=1}^{n} i^{2}
det| 5 3 ; 7 6 | = 9
398K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
AgNO₃ + NaCl → AgCl↓ + NaNO₃
\lim_{ψ\to 0} \frac{\sin ψ}{ψ} = 1
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 8 5 ; 3 9 | = 57
e^{i\pi} + 1 = 0
7x² + 9x + 1 = 0
1x² + 8x + 0 = 0
∑_{k=1}^{n} k = n(n+1)/2
∫₀^∞ e^(-β²) dβ = √π / 2