Σ index
Eq pack 19
Rxn set 20
Rxn set 26
Σ#24
Σ#12
Ledger /21
Eq pack 13
Ledger /3
Eq pack 1
Batch 16
Σ#18
Σ#6
Ledger /15
Batch 4
Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:52Z
∑_{k=1}^{n} k = n(n+1)/2
ops_1645.csv
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
168K
spec_6630.dat
det| 7 4 ; 4 8 | = 40
446K
3x² + 3x + 6 = 0
eq_0181.dat
det| 7 6 ; 1 8 | = 50
144K
ops_8235.eqn
∫₀^∞ e^(-x²) dx = √π / 2
371K
∇²t = 0
ops_1764.eqn
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
259K
spec_0560.dat
7φ² + 3φ + 6 = 0
86K
7z² + 2z + 0 = 0
ops_3294.dat
∂z/∂φ = 7z
224K
ops_7782.eqn
Fe₂O₃ + 3CO → 2Fe + 3CO₂
234K
det| 4 2 ; 5 5 | = 10
spec_6071.eqn
CaCO₃ → CaO + CO₂
218K
mat_6103.dat
N₂ + 3H₂ ⇌ 2NH₃
354K
ops_0531.dat
\binom{n}{k} = \frac{n!}{k!(n-k)!}
70K
spec_4768.mol
∑_{k=1}^{n} k = n(n+1)/2
402K
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