REDUCE

9.10 INTERPOL Operator

Syntax:

interpol(values,variable,points);

where valuesand pointsare lists of equal length and <variable> is an algebraic expression (preferably a kernel).

interpol generates an interpolation polynomial f in the given variable of degree length(values)-1. The unique polynomial f is defined by the property that for corresponding elements v of valuesand p of pointsthe relation \(f(p)=v\) holds.

The Aitken-Neville interpolation algorithm is used which guarantees a stable result even with rounded numbers and an ill-conditioned problem.


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