α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ σ ς τ υ φ χ ψ ω Γ Δ Θ Λ Ξ Π Σ Φ Ψ Ω
f(x) = x2{{#invoke:Check for unknown parameters|check
| unknown =
| showblankpositional=1
| preview = unknown parameter "_VALUE_" (consider using |1=, {{!}}, {{=}})
| 1 | big | size
}}