Why Interpolation Is Required?

Why is interpolation needed? Interpolation is needed to compute the value of a function for an intermediate value of the independent function.

What does interpolation help with?

The primary use of interpolation is to help users, be they scientists, photographers, engineers or mathematicians, determine what data might exist outside of their collected data. Outside the domain of mathematics, interpolation is frequently used to scale images and to convert the sampling rate of digital signals.

When interpolation techniques are used?

Interpolation predicts values for cells in a raster from a limited number of sample data points. It can be used to predict unknown values for any geographic point data, such as elevation, rainfall, chemical concentrations, noise levels, and so on. The available interpolation methods are listed below.