Gnuplot

• Point type and line type

• Symbols

symbol html4    latex    gnuplot        ASCII

α α   \alpha     {/Symbol a}    224
β β    \beta      {/Symbol b}    225
&chi χ     \chi       {/Symbol c}
&Chi Χ     \Chi       {/Symbol C}
δ δ   \delta     {/Symbol d}    235
Δ Δ   \Delta     {/Symbol D} 
ε ε \epsilon   {/Symbol e}    238
Ε Ε \Epsilon   {/Symbol E}
φ φ     \phi       {/Symbol f}    237
Φ Φ     \Phi       {/Symbol F}    232
γ γ   \gamma     {/Symbol g}  
Γ Γ   \Gamma     {/Symbol G}    226
η η     \eta       {/Symbol h}
Η Η     \Eta       {/Symbol H}
ι ι    \iota      {/Symbol i}
Ι Ι    \Iota      {/Symbol I}
κ κ   \kappa     {/Symbol k}
Κ Κ   \Kappa     {/Symbol K}
&lambda λ  \lambda    {/Symbol l}
&Lambda Λ  \Lambda    {/Symbol L}
μ μ      \mu        {/Symbol m}    230
Μ Μ      \Mu        {/Symbol M}
ν ν      \nu        {/Symbol n}
Ν Ν      \Nu        {/Symbol N}
&omicron ο \omicron   {/Symbol o}
&Omicron Ο \Omicron   {/Symbol O}
π π      \pi        {/Symbol p}    227
Π Π      \Pi        {/Symbol P}
θ θ   \theta     {/Symbol q}  
Θ Θ   \Theta     {/Symbol Q}    233
ρ ρ     \rho       {/Symbol r}
Ρ Ρ     \Rho       {/Symbol R}
σ σ   \sigma     {/Symbol s}    229
Σ Σ   \Sigma     {/Symbol S}    228
τ τ     \tau       {/Symbol t}    231
Τ Τ     \Tau       {/Symbol T}
υ υ \upsilon   {/Symbol u}
Υ Υ \Upsilon   {/Symbol U}
ω ω   \omega     {/Symbol w}
Ω Ω   \Omega     {/Symbol W}
ξ ξ      \xi        {/Symbol x}
Ξ Ξ      \Xi        {/Symbol X}
ψ ψ     \psi       {/Symbol y}
Ψ Ψ     \Psi       {/Symbol Y}
ζ ζ    \zeta      {/Symbol z}
Ζ Ζ    \Zeta      {/Symbol Z}

Italic font for use as variable names
To write M in italics we need {/Times-Italic M}

• border

• Links:

1. http://www.gnuplotting.org/plot-functions-using-the-special-filenames-property/