How do I include greek letter in gnuplot?

Question

I'm using ubuntu 14.04 and gnuplot-x11, and found that for greek letter alpha, {/symbol a} will work, but that just shows me {/symbol a}, not greek letter alpha. I tried {\symbol a} or other options, but that does not work..

Accepted Answer

Using the syntax `{/Symbol a}` requires that you enable the `enhanced` mode. This can be done in several ways:

When setting the terminal

```
set terminal ... enhanced
```

After setting the terminal with

```
set termoption enhanced
```

Explicitely for a single label

```
set xlabel '{/Symbol a}' enhanced
```

Depending on the output terminal you are using, the best option is to use utf-8 encoding and directly input the characters:

```
set encoding utf8
set xlabel 'α'
```

How do I include greek letter in gnuplot?

Solution

Problem