Operator Journal /sym/f43c60
id=1 · host=nl.mattivster.me · 2026-10-20 17:17Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
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det| 7 4 ; 4 8 | = 40
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\lim_{y\to 0} \frac{\sin y}{y} = 1
∫₀^∞ e^(-ψ²) dψ = √π / 2
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ΔS ≥ 0
5n² + 6n + 0 = 0
det| 9 8 ; 3 10 | = 66
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