Both of these Greek letters are used in economics as shorthand ... by one equals the same amount—so the epsilon and phi symbols here don't do anything. Reaction by on social media was ...

The first true alphabet was an invention of the Greek world, revolutionizing writing, literacy, and shaping foundations of ...

Ξ Xi (zie or zee) Ο Omicron (om-e-cron) Π Pi (pie) Ρ Rho (roe) Σ Sigma (sig-mah) Τ Tau (taw) Υ Upsilon (youp-si-lon) Φ Phi (fie or fee) Χ Chi (kie) Ψ Psi (sigh) Ω Omega (o-meg-ah) ...

by one equals the same amount—so the epsilon and phi symbols here don't do anything. Reaction by on social media was incredulous: OMG - the Trump admin released their “formula” for how they calculated ...