TY - CONF Y1 - 2021/// SN - 22138684 PB - Springer Science and Business Media B.V. UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85123281383&doi=10.1007%2f978-981-16-4513-6_46&partnerID=40&md5=c14361b1390e369fd8436902515add38 A1 - Harim, N.A. A1 - Abdul Karim, S.A. EP - 539 AV - none N2 - This paper discusses the positivity preserving interpolation of C2 rational quartic spline for positive data. The rational quartic spline has three different parameters which are αi, βi and γi. The proposed rational spline can achieve C2 continuity without the need to solve any tridiagonal systems linear of equations, unlike some other splines that needed solving systems linear of the equation. The sufficient condition is derived on one parameter meanwhile the other two parameters are free parameters that can the user interpolate the final shape of the positive interpolating curve. These conditions will guarantee to produce a positive interpolating curve everywhere. Comparison with the existing schemes also is discussed in detail. From the graphical and numerical results, we found that the proposed scheme is better than existing schemes, since it has an extra free parameter to control the positive interpolating curve while maintaining C2 continuity. © 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. N1 - cited By 0; Conference of 6th International Conference on Fundamental and Applied Sciences, ICFAS 2020 ; Conference Date: 13 July 2021 Through 15 July 2021; Conference Code:270909 TI - Positivity Preserving Using C2 Rational Quartic Spline Interpolation ID - scholars15566 SP - 529 ER -