Bilinear interpolation - Wikipedia
https://en.wikipedia.org/wiki/Bilinear_interpolationIn mathematics, bilinear interpolation is an extension of linear interpolation for interpolating functions of two variables (e.g., x and y) on a rectilinear 2D grid. Bilinear interpolation is performed using linear interpolation first in one direction, and then again in the other direction. Although each step is linear in the sampled values and in the position, the interpolation as a whole is not linear but rather q…
Linear interpolation calculator
https://www.johndcook.com/interpolator.htm30.12.2021 · Online calculator for linear interpolation and extrapolation. Given two (x, y) pairs and an additional x or y, compute the missing value. Linear interpolation calculator Linear interpolator Fill in five values and leave one blank. (Help and details) Brought to you by Need to make sense of data? We can help.