I’m still doing the murmuration but yesterday whilst trying to create a Bezier curve for a target to follow so that in turn the Starling flocks can follow the target I stumbled upon Animation Nodes. Having had a quick and baffling look they seem an excellent sub programme. So far I can only find them, load them and make a mess with them, anyone who would like to know more then look for tutorials, there are a few on Youtube. If I can help I will. It doesn’t only produce mathematical curves but seems to do lots of other arcane stuff as well. Few folk can remember trig functions but Wolfram Math