Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-08-30 05:30Z
∑_{k=1}^{n} k = n(n+1)/2
det| 4 1 ; 6 5 | = 14
136K
det| 7 2 ; 7 8 | = 42
det| 5 3 ; 7 6 | = 9
411K
∑_{k=1}^{n} k = n(n+1)/2
∫₀^∞ e^(-z²) dz = √π / 2
4ψ² + 5ψ + 2 = 0
det| 8 2 ; 3 9 | = 66
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 7 3 ; 2 8 | = 50
∑_{k=1}^{n} k = n(n+1)/2
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 1 1 ; 5 2 | = -3
\binom{n}{k} = \frac{n!}{k!(n-k)!}