Field Notes / Σ /sym/843e44

id=1 · host=mattivster.me · 2026-08-26 00:35Z

∂r/∂x = 1r

∑_{k=1}^{n} k = n(n+1)/2

185K

iħ ∂ψ/∂t = Ĥψ

122K

det| 4 5 ; 7 5 | = -15

∂ω/∂φ = 7ω

61K

∇²ψ = 0

362K

PV = nRT

e^{i\pi} + 1 = 0

440K

e^{i\pi} + 1 = 0

375K

det| 5 2 ; 3 6 | = 24

\oint_C \vec{F}\cdot d\vec{r} = 0

451K

\lim_{φ\to 0} \frac{\sin φ}{φ} = 1

357K

\binom{n}{k} = \frac{n!}{k!(n-k)!}

det| 12 3 ; 7 13 | = 135

∑_{k=1}^{n} k = n(n+1)/2