They are pure fascination and useful wrt Bézier stuff.
Some PDF may just be one of Bernstein !
Seemingly, as previously discussed, Smath does not
set '0' on some IEEE ... defined in green.
There are few more instances of '0', not in this document.
Jean

Spline Bernstein Polynomials.sm (60.18 KiB) downloaded 248 time(s).