Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 04:14Z
12r² + 6r + 1 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
168K
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
371K
4t² + 9t + 6 = 0
\frac{8}{7} \sum_{i=1}^{n} i^{2}
86K
∇²ψ = 0
det| 9 6 ; 7 10 | = 48
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F = ma
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
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det| 4 8 ; 7 5 | = -36
\lim_{α\to 0} \frac{\sin α}{α} = 1
ω = 2πf
∑_{k=1}^{n} k = n(n+1)/2