@Preben Alsholm 

Thanks for the reply! I used the evalindets and that seems to work just fine for me. I am using Maple2015.2. I'll do some reading on how evalindets actually works before I post any more quetions.

Cheers,

Dave

@ecterrab 

Thanks for the reply, Edgardo. It could be that we are using different maple versions. I'm using Maple 2015. I'll try loading the entire physics package and correcting my coordinates.

Cheers,

Dave

@ecterrab 

Thank you so much! The only reason I wanted to do this was so that it matched the book and papers I am using. Aparently in tokamak physics the convention has been to use r, theta, z in the poloidal direction and R, phi in the toroidal direction.

Cheers!

Dave

@pchin 

I am using Maple2015 and I am also getting Typesetting:-delayDotProduct as an output while using the with(Physics[Vectors]) package. If necessary, I can copy and paste my code here.

Thanks,

David

@ecterrab 

You have been an absolutely amazing resource, thank you so much! Hopefully my final question for a while: If I use Coordinates(cylindrical) with Coordinates(X = [r,theat,z,t]), will differential operators such as divergence, curl, gradient and laplacian still take the directional derivative correctly? That is to say will my Nabla.A still be taken as:

or will it treat the unit vectors differently?

Cheers, and thanks again for all the help!!

Dave

@ecterrab 

Thank you so much for your very detailed reply. I'll give this a try and if I run into more problems, I'll let you know. For now, the only question I have is that of setting the coordinates to cylindrical. I would like to use cyclindrical coordinates, but I want the variables to be [r, theta, z, t]. Is that possible? Do I need to enter that into setup or is there a simple command that will do that for me?

Cheers,

David

@ecterrab 

What about using Nabla and/or Del? Say I want to take the gradient, divergence, curl or laplacian, how do I do that? I already tried using the physics package and it returns 0 if I use Nabla.A or any other arrangement. Do I need to specify the coordinate system and some how tell Maple that each variable is a function of the coordinates I chose?

Cheers!

I haven't seen or heard anything about this in a while. Any developers have any input on if/when this will be added?