tangentialti
Tangentialti refers to a specific geometric concept that arises when considering the relationship between a curve and a line. In Euclidean geometry, a tangent line to a curve at a given point is a straight line that "just touches" the curve at that point. This means that the line and the curve share that single point in common, and the line does not cross into the curve's interior on either side of the point of tangency. The concept of tangentialti is fundamental to understanding calculus, where it is used to define the derivative of a function, which represents the instantaneous rate of change of the function at a particular point, and is geometrically interpreted as the slope of the tangent line.
More broadly, tangentialti can be understood as a property of contact. A tangent line is the best