Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 14:52Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
244K
det| 12 5 ; 4 13 | = 136
det| 2 7 ; 7 3 | = -43
91K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 9 4 ; 1 10 | = 86
100K
det| 8 5 ; 3 9 | = 57
50K
∫₀^∞ e^(-φ²) dφ = √π / 2
137K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
197K