Distance Between Two Points

Very helpful thank you

Fat wires have a "primary" value, for example when you pug it into a calculator. A 3 fat wire using for vetors uses the magnitude of the vector as its primary value.

I am trying to calculate positional data for an animation using fixed points in space. I would love to use your gadget, but can't figure out how to use it in a scene. what plugs into the input? how? where? please help