Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 17:28Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
iħ ∂ψ/∂t = Ĥψ
det| 5 6 ; 2 6 | = 18
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3r² + 6r + 7 = 0
det| 9 4 ; 1 10 | = 86
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∫₀^∞ e^(-t²) dt = √π / 2
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∑_{k=1}^{n} k = n(n+1)/2
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det| 5 3 ; 7 6 | = 9
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