What is Interpolation?

Interpolation is a statistical method used to estimate values of an unknown function f(x) for specific subjects x in a specific range [a, b] when a number of observed values f(x) are available within that range. Interpolation is an estimation method of constructing new data points within the scope of a discrete set of known data points. Interpolation helps to determine the data points among those indicated. Interpolation is required to calculate the value of a function for an intermediate value of the independent function. This is a process of determining unknown values between known data points. It is mainly used to predict unknown values for related geographical data points, such as noise level, precipitation, altitude, etc.

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