• Relationships can be assigned with a colour. By default a random colour is assigned, but by double clicking the output box on a node, a new colour can be assigned.
• Relationships can be deleted. Double click on an input box to delete the relationships.
• Nodes now have separate input boxes, so input relationships are easier to create and view.
• Added a new node type - tangent. Adding new node types takes about five minutes, so I should add a whole suite of them soon.
• Adding and deleting nodes no longer re-renders to entire screen (d'oh!)
• Relationships are created on the mouse-up event on the input box rather than the mouse-over.

The calculator still defaults to drawing a circle and is available here.

Simon Gladman