It's not explicitly stated, but I agree that if you've heard of Euler the homage is obvious. Likewise, if you've heard of Jacquard or his invention, then the h

It's not explicitly stated, but I agree that if you've heard of Euler the homage is obvious. Likewise, if you've heard of Jacquard or his invention, then the homage here is obvious as well. Neither case requires a footnote explaining the reference.