ALGORITHM-716 TSPACK - TENSION SPLINE CURVE-FITTING PACKAGE

Authors
Citation
Rj. Renka, ALGORITHM-716 TSPACK - TENSION SPLINE CURVE-FITTING PACKAGE, ACM transactions on mathematical software, 19(1), 1993, pp. 81-94
Citations number
9
Categorie Soggetti
Computer Sciences",Mathematics
ISSN journal
00983500
Volume
19
Issue
1
Year of publication
1993
Pages
81 - 94
Database
ISI
SICI code
0098-3500(1993)19:1<81:AT-TSC>2.0.ZU;2-Z
Abstract
The primary purpose of TSPACK is to construct a smooth function which interpolates a discrete set of data points. The function may be requir ed to have either one or two continuous derivatives. If the accuracy o f the data does not warrant interpolation, a smoothing function (which does not pass through the data points) may be constructed instead. Th e fitting method is designed to avoid extraneous inflection points (as sociated with rapidly varing data values) and preserve local shape pro perties of the data (monotonicity and convexity), or to satisfy the mo re general constraints of bounds on function values or first derivativ es. The package also provides a parametric representation for construc ting general planar curves and space curves.