In Chapter 4, using interpolation methods, we found the value of the entry y for an intermediate value of the argument x, from a given table of value of x and y.
Sometimes we have to find the value of x for a given values of y not in the table. This reverse process is known as inverse interpolation.
Thus inverse interpolation is defined as the process of finding the value of the argument corresponding to a given value of the function lying between two tabulated functional values.
In this chapter, we use the following methods to find the value of the argument x for a given value of y.
- Lagrange’s inverse interpolation formula
- Successive approximation method or iteration method
- Reversion of series method ...