Greek Alphabet  Lowercase Uppercase Name Pronunciation α Α alpha AL-fuh β Β beta BAY-tuh γ Γ gamma GAM-muh δ Δ delta DEL-tuh ε Ε epsilon EHP-suh-lawn ζ Ζ zeta ZAY-tuh η Η eta AY-tuh θ Θ theta THAY-tuh ι Ι iota eye-O-tuh κ Κ kappa KAP-puh λ Λ lambda LAMB-duh μ Μ mu mew ν Ν nu new ξ Ξ xi KUH-see ο Ο omicron OHM-uh-krawn π Π pi peye ρ Ρ rho rO σ Σ sigma SIG-muh τ Τ tau tow υ Υ upsilon UP-suh-lawn φ Φ phi feye, fee χ Χ chi keye, chee ψ Ψ psi seye, see ω Ω omega O-may-guh Red characters represent letters used frequently in this course. Blue characters indicate letters used infrequently in this course. (Remaining letters will most likely not be encountered in the course.)