This paper presents a parallel algorithm for polynomial interpolation
implemented on a mesh of trees. The algorithm is based on the Lagrange
's interpolation formula. It requires O(log n) time using n(2) process
ors where n is the number of input data points at which the values of
the function will be specified. We have also shown how the algorithm c
an be extended to the case when only p(2) processors (p < n) will be a
vailable. The algorithm mapped on p(2) processors has a time complexit
y of O((n(2)/p(2)) log n).