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Home/Magazine Archive/August 1974 (Vol. 17, No. 8)/Interpolation with rounded ramp functions/Abstract

Interpolation with rounded ramp functions

By Rolf O. Lagerlöf
Communications of the ACM, August 1974, Vol. 17 No. 8, Pages 476-479
10.1145/361082.361101
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A new interpolation function is introduced. It has infinitely many continuous derivatives and is a composition of ramp functions with smoothed bends called Rounded Ramp Functions. How the interpolation function can be extended to more than one variable is shown. An efficient Fortran program is given by which the interpolation function can be obtained for a given point set.

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