How to compute curl on the ti89

Q: How do you use the vector module in Calculus made Easy to find the curl?

A: in Calculus Made easy select vector calculus under F6. Then select curl under F1 5

Enter a 3d vector function such as [x,x^4*y,x*y*z]

Select Cartesian coordinates as you are using those.

Press Enter to curl.

Easy.