A two-step method adaptive with memory with eighth-order for solving nonlinear equations and its dynamic

Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
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JR_CMDE-10-4_012

تاریخ نمایه سازی: 9 بهمن 1401

Abstract:

In this work, we have constructed the with memory two-step method with four convergence degrees by entering the maximum self-accelerator parameter(three parameters). Then, using Newton’s interpolation, a with-memory method with a convergence order of ۷.۵۳ is constructed. Using the information of all the steps, we will improve the convergence order by one hundred percent, and we will introduce our method with convergence order ۸. Numerical examples demonstrate the exceptional convergence speed of the proposed method and confirm theoretical results. Finally, we have presented the dynamics of the adaptive method and other without-memory methods for complex polynomials of degrees two, three, and four. The basins of attraction of existing with-memory methods are present and compared to illustrate their performance.

Authors

Vali Torkashvand

Department of Mathematics, Shahre-Qods Branch, Islamic Azad University, Tehran, Iran.

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