Who discovered interpolation?
Brahmagupta's interpolation formula is a second-order polynomial interpolation formula developed by the Indian mathematician and astronomer Brahmagupta (598–668 CE) in the early 7th century CE.
What is the purpose of linear interpolation?
Linear interpolation is a method useful for curve fitting using linear polynomials. It helps in building new data points within the range of a discrete set of already known data points. Therefore, the Linear interpolation is the simplest method for estimating a channel from the vector of the given channel's estimates.