piecewise-smooth curve

piecewise-smooth curve

[¦pēs‚wīz ‚smüth′kərv] (mathematics) The range of a function from a closed interval to a Euclidean space such that each of the Cartesian coordinates of the image point is a continuously differentiable function on the closed interval, except at a finite set of points where the function is differentiable on the left and on the right.