Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:56Z
∑_{k=1}^{n} k = n(n+1)/2
det| 12 9 ; 5 13 | = 111
468K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
\frac{3}{2} \sum_{i=1}^{n} i^{2}
278K
∂x/∂θ = 8x
∑_{k=1}^{n} k = n(n+1)/2
339K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
177K
3φ² + 4φ + 2 = 0
\lim_{γ\to 0} \frac{\sin γ}{γ} = 1
358K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
121K
5ω² + 6ω + 0 = 0
det| 7 4 ; 4 8 | = 40
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det| 9 5 ; 1 10 | = 85
316K