#### Plotting a basic function

`gnuplot> plot x**3-4*x**2+sin(x)/x `

will plot the function x^{3}-4x

^{2}+sin(x)/x.

#### Disabling the function label/legend on the top right

```
gnuplot> unset key
gnuplot> replot
```

Will remove the label in the top right corner of the output and redraw the graph.

#### Outputting to pdf

```
gnuplot> set terminal pdf
Terminal type set to 'pdfcairo'
Options are ' size 5.00in, 3.00in '
gnuplot> set output "somefile.pdf"
gnuplot> replot
gnuplot> unset output
```

Will create a new file called somefile.pdf, write it's output to it (that's what the replot command is for) and finally close the file so you can open it (`unset output`

).
If you prefer outputting to png or jpg, just use `set terminal png`

and set the output accordingly.

#### Restoring the output to standard after writing to pdf

```
gnuplot> set terminal pop
restored terminal is wxt 0
```

#### Only plotting a certain domain

`gnuplot> plot [x=-1:1] x**3`

#### Drawing the x-axis

```
gnuplot> set xzeroaxis
gnuplot> replot
```

#### Setting the axis labels

```
gnuplot> set ylabel "data"
gnuplot> set xlabel "time"
gnuplot> replot
```

That should be enough to get you started. If you'd like to know more, just check out the documentation for gnuplot.

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