Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:33Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{6}{1} \sum_{i=1}^{n} i^{2}
det| 9 4 ; 1 10 | = 86
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∂x/∂θ = 8x
∫₀^∞ e^(-α²) dα = √π / 2
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
177K
∑_{k=1}^{n} k = n(n+1)/2
121K