insert greek symbols

The easy solution: paste and copy the symbols. You can also type the
codes if the rich-text is disabled! Typing codes in rich-text mode will
display the code and not the symbol.

 

Character Displayed HTML Code
capital gamma Γ & #915; or & Gamma;
capital delta Δ & #916; or & Delta;
capital theta Θ & #920; or & Theta;
capital lambda Λ & #923; or & Lamda;
capital xi Ξ & #926; or & Xi;
capital pi Π & #928; or & Pi;
capital sigma Σ & #931; or & Sigma;
capital phi Φ & #934; or & Phi;
capital psi Ψ & #936; or & Psi;
capital omega Ω & #937; or & Omega;
small alpha α & #945; or & alpha;
small beta β & #946; or & beta;
small gamma γ & #947; or & gamma;
small delta δ & #948; or & delta;
small epsilon ε & #949; or & epsilon;
small zeta ζ & #950; or & zeta;
small eta η & #951; or & zeta;
small theta θ & #952; or & theta;
small iota ι & #953; or & iota;
small kappa κ & #954; or & kappa;
small lamda λ & #955; or & lambda;
small mu μ & #956; or & mu;
small nu ν & #957; or & nu;
small xi ξ & #958; or & xi;
small pi π & #960; or & pi;
small rho ρ & #961; or & rho;
small sigma σ & #963; or & sigma;
small tau τ & #964; or & tau;
small upsilon υ & #965; or & upsilon;
small phi φ & #966; or & phi;
small chi χ & #967; or & chi;
small psi ψ & #968; or & psi;
small omega ω & #969; or & omega;