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by rockmeamedee 436 days ago
Oh this is great! I always have this problem. I find that's one of my biggest barriers when reading queueing theory content. I'm only doing it intermittently so I don't have memorized the meanings of ρ,σ,μ,λ...

Visually I also often confuse rho and sigma, and math texts will use psi ψ and phi φ in weird fonts and I can never tell them apart.