Mathematics Letters

Volume 5, Issue 4, December 2019

  • Comparative Study of Numerical Methods for Solving Non-linear Equations Using Manual Computation

    Isaac Azure, Golbert Aloliga, Louis Doabil

    Issue: Volume 5, Issue 4, December 2019
    Pages: 41-46
    Received: 30 June 2019
    Accepted: 25 December 2019
    Published: 8 January 2020
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    Abstract: This paper aims at comparing the performance in relation to the rate of convergence of five numerical methods namely, the Bisection method, Newton Raphson method, Regula Falsi method, Secant method, and Fixed Point Iteration method. A manual computational algorithm is developed for each of the methods and each one of them is employed to solve a roo... Show More
  • A Proposed New Model for Denton Proportional Method Generalization in Quarterly Disaggregation of the Gross Domestic Product

    Raïmi Aboudou Essessino, Guy Degla

    Issue: Volume 5, Issue 4, December 2019
    Pages: 47-53
    Received: 26 December 2019
    Accepted: 8 January 2020
    Published: 21 January 2020
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    Abstract: The estimation of a quarterly Gross Domestic Product (GDP) using an indirect approach based on quarterly indicators is often done by quarterly disaggregation of the national accounts branch per branch. The proportional method proposed by Denton (1971) leads to solving several optimization programs and doesn’t take into account the links between bra... Show More