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Research Article Open access CC BY 4.0

An Analytic Investigation of the Quadratic Nonlinear Oscillator by an Iteration Method

B. M. Ikramul Haque, Md. Rakib Hossain

Journal of Advances in Mathematics and Computer Science · pp. 1–8 · Published 20 Nov 2015

10.9734/BJMCS/2016/22049

Abstract

A modified approximate analytic solution of the quadratic nonlinear oscillator “ ẍ + x2 sgn(x) =0 ” has been obtained based on an iteration procedure. Here we have used the truncated Fourier series in each iterative step. The approximate frequencies obtained by our technique shows a good agreement with the exact frequency. The percentage of error between exact frequency and our fourth approximate frequency is as low as 0.00003%.

Nonlinear oscillator quadratic nonlinear oscillator iteration method.

Cited by 6

A Modified Solution of the Nonlinear Singular Oscillator by Extended Iteration Procedure

B. M. Ikramul Haque, M. M. Ayub Hossain · Journal of Advances in Mathematics and Computer Science · 2019

On the Analytical Approximation of the Nonlinear Cubic Oscillator by an Iteration Method

B. Haque, A. Reza, Md. Mominur Rahman · Journal of Advances in Mathematics and Computer Science · 2019

Improvement of Analytical Solution to the Inverse Truly Nonlinear Oscillator by Extended Iterative Method

B. M. Ikramul Haque, M. Asifuzzaman, M. K. Hasan · International Conference on Mathematics and Computing · 2017

On the analytical approximation of the quadratic non-linear oscillator by modified extended iteration method

B. M. Ikramul Haque, Shajia Afrin Flora · Applied Mathematics and Nonlinear Sciences · 2020

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