Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 17:32Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
iħ ∂ψ/∂t = Ĥψ
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
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3r² + 6r + 7 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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det| 12 2 ; 2 13 | = 152
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det| 10 7 ; 3 11 | = 89
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det| 9 4 ; 1 10 | = 86
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\lim_{β\to 0} \frac{\sin β}{β} = 1
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