Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 08:20Z
∑_{k=1}^{n} k = n(n+1)/2
∫₀^∞ e^(-t²) dt = √π / 2
75K
∑_{k=1}^{n} k = n(n+1)/2
479K
11n² + 1n + 0 = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 7 4 ; 4 8 | = 40
191K
∫₀^∞ e^(-x²) dx = √π / 2
473K