Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:39Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
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CaCO₃ → CaO + CO₂
∫₀^∞ e^(-r²) dr = √π / 2
289K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
278K
e^{i\pi} + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
177K
∂x/∂r = 4x
\binom{n}{k} = \frac{n!}{k!(n-k)!}
358K
det| 7 7 ; 4 8 | = 28
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O