RIHoward
Knowing nothing about the topic I much enjoyed following this thread and the chat between yourself and others.
THEN I got to your post that said
One fascinating one for me is the production of a swept wing which requires massive dynamic matrix calculations that involve infinite series at the tips and root, a huge calculation. It was only with the advent of digital computers and finite element modelling that this technology could be realised in the West.
Because I happen to know a little about the history and practice of swept wing deign in the 1950s I just burst out laughing. Somebody has been pulling your leg I am afraid.