Operation that consists of constructing or estimating the value of a function for a value of the variable taken between two discrete values in the interval in which the relationship was established.

### Example

Starting from the values of \(\log(5)\) and \(\log(6)\), we can estimate using interpolation the value of \(\log(5.5)\):

\(\log(5.5) ≈ \log(5) +\dfrac{\log(5) + \log(6)}{2} ≈ 0.738\).