What you are referring to is used in e.g. CAD modelling, we call them non-unifor...

		Random_ernest on May 9, 2020 \| parent \| context \| favorite \| on: 4D Toys: how objects bounce and roll in 4D – paper... What you are referring to is used in e.g. CAD modelling, we call them non-uniform rational B-splines or NURBS. Recently there has been super interesting research on using these nurbs as ansatzfunctions e.g. for FEM stuff. They got a lot of applications.