👉 In mathematics, an interpolant is a function that approximates a given function by a polynomial. It is often used in engineering and physics to approximate the behavior of systems with non-linearities or discontinuities. Interpolants are essential for modeling real-world phenomena where there may be complex relationships between variables, such as temperature, pressure, or displacement. Interpolant functions can be defined by specifying a set of points that define the function's behavior. These points are often called knots, and they
