What do the arrows mean? Div and curl should both be scalar at each point, right?
keenan
@Misaka-10032 This illustration is clearer with the animations/transitions used in class: basically one starts with just the black arrows, which encode the vector fields X and Y. The blue colors then represent the divergence (left) or curl (right) of these two vector fields. So for instance, dark blue on the left means "large negative divergence" and white means "large positive divergence." (The black arrows are left in the illustration so that we can see which field the divergence and curl come from.)
What do the arrows mean? Div and curl should both be scalar at each point, right?
@Misaka-10032 This illustration is clearer with the animations/transitions used in class: basically one starts with just the black arrows, which encode the vector fields X and Y. The blue colors then represent the divergence (left) or curl (right) of these two vector fields. So for instance, dark blue on the left means "large negative divergence" and white means "large positive divergence." (The black arrows are left in the illustration so that we can see which field the divergence and curl come from.)