Does anybody have sample app that use node that represent mathematical function ?

I have task to build app graphical calculator, that use graphical interface to build equation and perform arithmetic operation.

Until now i have no idea how to build it.

Thank You

The GoGeneralNode class was based on the node we used in Sanscript. Here are some screen shots:

Interesting, but how to embedd mathematical operation to node ?

would you give me a simple example (for example just embedd summing operation to node) ?

i have built simple graphical interface for it based on GoGeneralNode class, but still have no idea how to embedd mathematical operation to node.

Thank You

Best Regards