Left-click: rotate, Mouse-wheel/middle-click: zoom, Right-click: pan, Escape: close
When you have vector in column form, these are the best things in Action->Vector
- unitV
- angle
- norm
- this actually means magnitude!
- dotp
- toRect(angular)
- This means component form! (rectangular = right-angled, i.e. the right-angled i, j components)
- toPol(ar)
- give magnitude and direction
