What is another word for tangent plane?
Pronunciation: [tˈand͡ʒənt plˈe͡ɪn] (IPA) 
Tangent plane is a mathematical term that describes a flat surface that touches a curved surface at only one point. This concept plays an important role in several branches of math, including Calculus and Differential Geometry. There are several synonymous terms that are commonly used to describe the tangent plane, including "contact element," "touching plane," "plane of contact," and "supporting plane." These terms are often used interchangeably, depending on the context and level of mathematical abstraction. Additionally, the tangent plane can be visualized as a two-dimensional plane that represents the local behavior of a curved surface, such as a sphere or a cone.
