TY  - JOUR
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84926686710&doi=10.1155%2f2015%2f572768&partnerID=40&md5=c8fa0c958f305f3832f85bd5bd5b5be0
JF  - Journal of Applied Mathematics
A1  - Abdul Karim, S.A.
A1  - Voon Pang, K.
A1  - Saaban, A.
VL  - 2015
Y1  - 2015///
SN  - 1110757X
PB  - Hindawi Limited
N2  - This paper discusses the positivity preserving interpolation for positive surfaces data by extending the C 1 rational cubic spline interpolant of Karim and Kong to the bivariate cases. The partially blended rational bicubic spline has 12 parameters in the descriptions where 8 of them are free parameters. The sufficient conditions for the positivity are derived on every four boundary curves network on the rectangular patch. Numerical comparison with existing schemes also has been done in detail. Based on Root Mean Square Error (RMSE), our partially blended rational bicubic spline is on a par with the established methods. © 2015 Samsul Ariffin Abdul Karim et al.
N1  - cited By 12
ID  - scholars6344
TI  - Positivity preserving interpolation using rational bicubic spline
AV  - none
ER  -