I am reading the wiki page on b splines and I am very confused about the order.
In particular the page states: "A spline of order {\displaystyle n}n is a piecewise polynomial function of degree {\displaystyle n-1}n-1 in a variable {\displaystyle x}x"
However their indexing of n goes up to 0, which would imply a curve with degree -1 which doesn't make any sense to me since the degree of a curve should be a non negative number.
Can someone clarify this for me? are they accidentally mixing degree and order and the indices of the spline notation should denote the degree, not the order?