These data sets, named
akima.x
,
akima.y
, and
akima.z
, collectively represent a smooth, distorted waveform in three dimensions. The data were taken from a study of waveform distortion in electronic circuits, described the second reference below.
z
values at selected points irregularly distributed in the
x-y
plane.
Hiroshi Akima (1978). A Method of Bivariate Interpolation and Smooth Surface Fitting for Irregularly Distributed Data Points. ACM Transactions on Mathematical Software 4: 148-159. Copyright 1978, Association for Computing Machinery, Inc., reprinted by permission.
Hiroshi Akima (1974). A Method of Bivariate Interpolation and Smooth Surface Fitting Based on Local Procedures. CACM 17: 18-20.