WF 3.2.6a

Span of Coplanar Vectors Select one or more vectors by clicking the check boxes in the “Select vector(s)” line below the figure. Click on the Show Span button to view the span of all the selected vectors. The directions and lengths of vectors   and  can be changed interactively by using the mouse to click on the head of each vector and dragging it to a different position. The mouse can also be used to rotate the angle of view of the figure.