Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 06:01Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
8K
det| 5 9 ; 4 6 | = -6
∑_{k=1}^{n} k = n(n+1)/2
102K
F = G m₁m₂ / r²
9ω² + 3ω + 5 = 0
9θ² + 8θ + 7 = 0
det| 5 6 ; 1 6 | = 24
62K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 4 2 ; 2 5 | = 16
CaCO₃ → CaO + CO₂
∫₀^∞ e^(-θ²) dθ = √π / 2