Σ index Batch 4 Eq pack 13 Ledger /9 Eq pack 7 Eq pack 25 Rxn set 2 Rxn set 14 Batch 22 Batch 10 Ledger /21

Field Notes / Σ /sym/3cad98

id=1 · host=formula-vault.cloud · 2026-10-22 04:19Z

\lim_{ψ\to 0} \frac{\sin ψ}{ψ} = 1

\lim_{r\to 0} \frac{\sin r}{r} = 1

392K

\lim_{β\to 0} \frac{\sin β}{β} = 1

203K

∇²z = 0

C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂

209K

det| 9 4 ; 1 10 | = 86

227K

3β² + 5β + 5 = 0

d/dt [t^3] = 3t^2

432K

det| 12 1 ; 5 13 | = 151

99K

d/dα [α^10] = 10α^9

e^{i\pi} + 1 = 0

363K

det| 3 1 ; 7 4 | = 5

246K

∑_{k=1}^{n} k = n(n+1)/2

409K

∑_{k=1}^{n} k = n(n+1)/2

242K