Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 01:19Z
∑_{k=1}^{n} k = n(n+1)/2
det| 11 9 ; 5 12 | = 87
75K
∑_{k=1}^{n} k = n(n+1)/2
479K
3β² + 6β + 2 = 0
det| 4 6 ; 4 5 | = -4
129K
F = ma
det| 7 4 ; 4 8 | = 40
390K
\frac{8}{7} \sum_{i=1}^{n} i^{2}
det| 11 5 ; 0 12 | = 132
1K
∑_{k=1}^{n} k = n(n+1)/2
153K
1x² + 5x + 7 = 0
det| 4 8 ; 1 5 | = 12
∇²ψ = 0
AgNO₃ + NaCl → AgCl↓ + NaNO₃
3φ² + 8φ + 6 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}