how to make a vectorField2D dynamically selectable?
currently i can make it show if i go inside Ejs and change n = 11 to n =30.
but i can't remember and i can't find previous posting on this
can ask how to make a vectorField2D dynamically selectable?
want to allow students to vary the visual vectorField2D to see that it is just a representation like in the 2 attached picture.
trying to make a better version of this http://webphysics.davidson.edu/physlet_resources/bu_semester1/c17_field.html http://webphysics.davidson.edu/physlet_resources/bu_semester1/index.html in Ejs