On the website "Learning Physics using Maple" of professor Gould, in the example "Vectors: Calculation & Visualization". If you click on the PDF file under that title, you see an example of vectors in 2d.
But when you look at the solution, you see him use the vector v with an arrow to create a fucntional depending of two variables. Since he doesn't load any package, I cannot reproduce this notation to work. I am talking about this:
Is there a trick that I am not aware of in Maple? The only way I know to have the arrow is to load the Physics package and the Vector package. And then you use the notation r_ to show r with an arrow.
I asked the question in the YouTube channel but did not receive any answer. Too bad.
Thank you in advance for any help on that matter.