Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 16:20Z
det| 6 2 ; 7 7 | = 28
\binom{n}{k} = \frac{n!}{k!(n-k)!}
479K
∫₀^∞ e^(-x²) dx = √π / 2
det| 11 9 ; 0 12 | = 132
57K
\frac{1}{3} \sum_{i=1}^{n} i^{2}
d/dψ [ψ^7] = 7ψ^6
F = G m₁m₂ / r²
AgNO₃ + NaCl → AgCl↓ + NaNO₃
∂α/∂n = 9α
4y² + 9y + 0 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}