Various authors have discovered formulae for numerical integration approximation. However these formulae always result to some amount of error which may differ in size depending on the formula. It’s therefore important that a formula with highest precision has been discovered and should be implemented for use in numerical integration approximations problems, especially for the definite integrals which cannot be evaluated by applying the analytical techniques. The present paper therefore explores the derivation of the N-point Definite Integral Approximation Formula (N-point DIAF) which amounts to the discovery of the 2-Point DIAF. This formula will assist in almost accurate evaluation of all definite integrals numerically. The proof of the formula is given, a specific test problem is then solved using the discovered 2-Point DIAF to obtain the solution numerically, which has the highest precision compared to other numerical methods of integration. Further the error terms are obtained and compared with the existing methods. Finally, the effectiveness of the proposed formula is illustrated by means of a numerical example.
Published in | Applied and Computational Mathematics (Volume 6, Issue 1) |
DOI | 10.11648/j.acm.20170601.11 |
Page(s) | 1-33 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2017. Published by Science Publishing Group |
Numerical Integration, Approximation, Definite Integrals, Error, Analytical Techniques, Stability
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APA Style
Francis Oketch Ochieng’, Nicholas Muthama Mutua, Nicholas Mwilu Mutothya. (2017). The N-Point Definite Integral Approximation Formula (N-POINT DIAF). Applied and Computational Mathematics, 6(1), 1-33. https://doi.org/10.11648/j.acm.20170601.11
ACS Style
Francis Oketch Ochieng’; Nicholas Muthama Mutua; Nicholas Mwilu Mutothya. The N-Point Definite Integral Approximation Formula (N-POINT DIAF). Appl. Comput. Math. 2017, 6(1), 1-33. doi: 10.11648/j.acm.20170601.11
AMA Style
Francis Oketch Ochieng’, Nicholas Muthama Mutua, Nicholas Mwilu Mutothya. The N-Point Definite Integral Approximation Formula (N-POINT DIAF). Appl Comput Math. 2017;6(1):1-33. doi: 10.11648/j.acm.20170601.11
@article{10.11648/j.acm.20170601.11, author = {Francis Oketch Ochieng’ and Nicholas Muthama Mutua and Nicholas Mwilu Mutothya}, title = {The N-Point Definite Integral Approximation Formula (N-POINT DIAF)}, journal = {Applied and Computational Mathematics}, volume = {6}, number = {1}, pages = {1-33}, doi = {10.11648/j.acm.20170601.11}, url = {https://doi.org/10.11648/j.acm.20170601.11}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.acm.20170601.11}, abstract = {Various authors have discovered formulae for numerical integration approximation. However these formulae always result to some amount of error which may differ in size depending on the formula. It’s therefore important that a formula with highest precision has been discovered and should be implemented for use in numerical integration approximations problems, especially for the definite integrals which cannot be evaluated by applying the analytical techniques. The present paper therefore explores the derivation of the N-point Definite Integral Approximation Formula (N-point DIAF) which amounts to the discovery of the 2-Point DIAF. This formula will assist in almost accurate evaluation of all definite integrals numerically. The proof of the formula is given, a specific test problem is then solved using the discovered 2-Point DIAF to obtain the solution numerically, which has the highest precision compared to other numerical methods of integration. Further the error terms are obtained and compared with the existing methods. Finally, the effectiveness of the proposed formula is illustrated by means of a numerical example.}, year = {2017} }
TY - JOUR T1 - The N-Point Definite Integral Approximation Formula (N-POINT DIAF) AU - Francis Oketch Ochieng’ AU - Nicholas Muthama Mutua AU - Nicholas Mwilu Mutothya Y1 - 2017/02/21 PY - 2017 N1 - https://doi.org/10.11648/j.acm.20170601.11 DO - 10.11648/j.acm.20170601.11 T2 - Applied and Computational Mathematics JF - Applied and Computational Mathematics JO - Applied and Computational Mathematics SP - 1 EP - 33 PB - Science Publishing Group SN - 2328-5613 UR - https://doi.org/10.11648/j.acm.20170601.11 AB - Various authors have discovered formulae for numerical integration approximation. However these formulae always result to some amount of error which may differ in size depending on the formula. It’s therefore important that a formula with highest precision has been discovered and should be implemented for use in numerical integration approximations problems, especially for the definite integrals which cannot be evaluated by applying the analytical techniques. The present paper therefore explores the derivation of the N-point Definite Integral Approximation Formula (N-point DIAF) which amounts to the discovery of the 2-Point DIAF. This formula will assist in almost accurate evaluation of all definite integrals numerically. The proof of the formula is given, a specific test problem is then solved using the discovered 2-Point DIAF to obtain the solution numerically, which has the highest precision compared to other numerical methods of integration. Further the error terms are obtained and compared with the existing methods. Finally, the effectiveness of the proposed formula is illustrated by means of a numerical example. VL - 6 IS - 1 ER -