👉 Straightness, in physics and engineering terms, refers to a property of an object or system that is characterized by its ability to maintain a straight line motion. This means that an object moves at constant speed perpendicular to its own direction. In mathematics, straightness can be defined as the condition for a function or curve to be locally one-to-one (i.e., it maps each point on the graph of the function to a unique point on the graph). For example, if we have a line in
