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I was trying to use sage math to make a 3d plot. I tried some example plots from the sage math website like:

```

x,y = var('x,y')

plot3d(x^2 + y^2, (-1,3),(-1,3))

```

Sage does open a plot in firefox, but its just a black rectangle. I think there is some missing dependency somewhere but I have no clue on how to diagnose a problem like that.

I am on Pop OS 21.10 (an Ubuntu based distro) and had installed sage directly from the debian repositories. The version of sage is 9.2 and I am using python 3.9.7. Apt says that I am on the latest update for sage

I was trying to use sage math SageMath to make a 3d plot. plot. I tried some example plots from the sage math SageMath website like:

x, y = var('x,y')
 
var('x, y')
plot3d(x^2 + y^2, (-1,3),(-1,3))
 
```(-1,3),(-1,3))

I was trying to use SageMath to make a 3d plot. I tried some example plots from the SageMath website like:

x, y = var('x, y')
plot3d(x^2 + y^2, (-1,3),(-1,3))

Sage does open a plot in firefox, but it's just a black rectangle. I think there is some missing dependency somewhere but I have no clue on how to diagnose a problem like that.

I am on Pop OS 21.10 (an Ubuntu based distro) and had installed sage directly from the debian repositories. The version of sage is 9.2 and I am using python 3.9.7. Apt says that I am on the latest update for Sage.