Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:14Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
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3x² + 3x + 6 = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
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∇²t = 0
7z² + 2z + 0 = 0
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
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∫₀^∞ e^(-t²) dt = √π / 2
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det| 7 4 ; 4 8 | = 40
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CH₄ + 2O₂ → CO₂ + 2H₂O
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