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
479K
det| 5 9 ; 4 6 | = -6
det| 11 9 ; 0 12 | = 132
57K
F = G m₁m₂ / r²
det| 7 4 ; 4 8 | = 40
276K
9ω² + 3ω + 5 = 0
9θ² + 8θ + 7 = 0
d/dz [z^11] = 11z^10
256K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 4 2 ; 2 5 | = 16
CaCO₃ → CaO + CO₂