Improvement BrycÃ¢ÂÂs Approximation to the Cumulative Distribution FunctionAbderrahmane Malki*
Algeria Mathematical Department, EPST School of Algiers, Algeria
- *Corresponding Author:
- Malki A
Algeria Mathematical Department
EPST School of Algiers, Algeria
E-mail: [email protected]
Received date: February 27, 2017; Accepted date: April 11, 2017; Published date: April 18, 2017
Citation: Malki A (2017) Improvement Bryc’s Approximation to the Cumulative Distribution Function. Int J Swarm Intel Evol Comput 6:151. doi:10.4172/2090-4908.1000151
Copyright: © 2017 Malki A. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
We develop two news approximations to the cumulative distribution function. We begin by improving the accuracy of Cadwell’s approximation. We reduce the accuracy from 0.006466 to 1.6635eÃÂ004. For the second approximation we reduce the accuracy of Bryc’s approximation from 7.062e-004 to 2.072e-005. As a performance, we use a Maximum Absolute Error (M.A.E.). We recommend these two new approximations for their high accuracy.