Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 14:42Z
∑_{k=1}^{n} k = n(n+1)/2
det| 11 9 ; 5 12 | = 87
52K
det| 12 5 ; 4 13 | = 136
∫₀^∞ e^(-x²) dx = √π / 2
90K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
∫₀^∞ e^(-φ²) dφ = √π / 2
100K
∑_{k=1}^{n} k = n(n+1)/2
50K
det| 4 9 ; 7 5 | = -43
det| 7 4 ; 4 8 | = 40
137K
det| 1 1 ; 3 2 | = -1
∑_{k=1}^{n} k = n(n+1)/2
196K
∑_{k=1}^{n} k = n(n+1)/2
218K