This document discusses various applications of interpolation in computer science and engineering. It describes interpolation as a method of constructing new data points within the range of a known discrete data set. Some examples of interpolation applications mentioned include estimating population values, image processing through transformations like resizing and rotation, zooming digital images using different interpolation functions, and ray tracing in computer graphics. Numerical integration techniques like the trapezoidal rule, Simpson's rule, and Romberg's method are also briefly covered.