# Evaluate a curl at a point?

I'm trying to create a curl example for my calc III students. I figured out how to compute the curl, but not how to evaluate it at a point. Can someone please advise? Thanks, Albert

```
from sage.manifolds.operators import *
E.<x,y,z> = EuclideanSpace()
v = E.vector_field(exp(x)*sin(y),-exp(x)*cos(y),0, name='v')
show(v.display())
curl_v = curl(v)
show(type(curl_v))
show(curl_v.display())
```