Shape Preserving Data Interpolation Using Rational Cubic Ball Functions

A smooth curve interpolation scheme for positive, monotone, and convex data is developed. This scheme uses rational cubic Ball representation with four shape parameters in its description. Conditions of two shape parameters are derived in such a way that they preserve the shape of the data, whereas...

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Bibliographic Details
Main Authors: Ayser Nasir Hassan Tahat, Abd Rahni Mt Piah, Zainor Ridzuan Yahya
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Journal of Applied Mathematics
Online Access:http://dx.doi.org/10.1155/2015/908924
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Summary:A smooth curve interpolation scheme for positive, monotone, and convex data is developed. This scheme uses rational cubic Ball representation with four shape parameters in its description. Conditions of two shape parameters are derived in such a way that they preserve the shape of the data, whereas the other two parameters remain free to enable the user to modify the shape of the curve. The degree of smoothness is C1. The outputs from a number of numerical experiments are presented.
ISSN:1110-757X
1687-0042