Simply, I want to simulate equations in a node this node should take inputs, pass them to the equations, and give me outputs In this case, the node will be subscribing to the input from another node, and in the same time, publishing the output to another node. So, it will be a subscriber and publisher node in the same time. Is this possible? And also, is there a more simple way to achieve the same goal without using a node as a subscriber and publisher in the same time?