1 | initial version |

Commands like `contour_plot`

are supposed to sound natural to (English-speaking) mathematicians, because a contour plot should be a familiar mathematical construction. `plot_vector_field`

, on the other hand, is supposed to sound like a command to Sage: "plot this vector field".

You can always find commands that start with "plot" by typing `plot`

and then hitting the TAB key. Another useful command is `%psearch`

, which lets you search for commands using `*`

as a wildcard, so you can do `%psearch *plot`

to find commands that *end* in "plot", or do this:

```
sage: %psearch *plot*
complex_plot
contour_plot
cylindrical_plot3d
density_plot
eulers_method_2x2_plot
gnuplot
gnuplot_console
implicit_plot
implicit_plot3d
list_plot
list_plot3d
list_plot_loglog
list_plot_semilogx
list_plot_semilogy
matrix_plot
parametric_plot
parametric_plot3d
plot
plot3d
plot_loglog
plot_semilogx
plot_semilogy
plot_slope_field
plot_step_function
plot_vector_field
plot_vector_field3d
plotkin_bound_asymp
plotkin_upper_bound
polar_plot
region_plot
revolution_plot3d
scatter_plot
spherical_plot3d
toric_plotter
```

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