# how do i plot 3d planes like x=1

I plotted z=x^2+y^2 and would like to add some planes to the diagram. How do i plot x=1?

how do i plot 3d planes like x=1

I plotted z=x^2+y^2 and would like to add some planes to the diagram. How do i plot x=1?

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1

Plots are objects that can be added, so you can first create the plot of your function:

```
sage: F = plot3d(lambda x,y: x^2+y^2, [-2,2], [-2,2])
```

Then the plot of the plane $x=1$

```
sage: P = implicit_plot3d(lambda x,y,z: x-1, (-2,2), (-2,2), (-2,8))
```

Then you can add them on a common plot:

```
sage: F+P
```

thanks a lot, didn't know could use lambda to pass functions in sage (completely new to this package)

Asked: **
2015-03-08 04:22:49 -0500
**

Seen: **1,256 times**

Last updated: **Mar 08 '15**

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