Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:07Z
4y² + 8y + 1 = 0
2H₂ + O₂ → 2H₂O
det| 3 3 ; 0 4 | = 12
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∑_{k=1}^{n} k = n(n+1)/2
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\frac{10}{7} \sum_{i=1}^{n} i^{2}
\frac{6}{1} \sum_{i=1}^{n} i^{2}
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\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| 8 8 ; 0 9 | = 72
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∫₀^∞ e^(-α²) dα = √π / 2
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det| 9 7 ; 1 10 | = 83
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H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
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