Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:39Z
∑_{k=1}^{n} k = n(n+1)/2
det| 4 8 ; 3 5 | = -4
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\frac{6}{1} \sum_{i=1}^{n} i^{2}
det| 1 4 ; 3 2 | = -10
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∂x/∂θ = 8x
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
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3φ² + 4φ + 2 = 0
\frac{8}{6} \sum_{i=1}^{n} i^{2}
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\lim_{t\to 0} \frac{\sin t}{t} = 1
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5ω² + 6ω + 0 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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