L-stable and A-stable numerical method of order two for stiff differential equation

نویسندگان

چکیده

This article presents a finite difference method of order two for stiff differential equation that will overcome the effects stiffness since it is A-stable. And, reflect asymptotic behavior solution problem L-stable. The classical explicit Runge–Kutta methods are not suitable problems numerical and (for example, Dahlquist problem). they both A-stable On applying Euler’s implicit method, problem. And hence, But one method. A new which L-stable presented in this article. It reflects solution. works well large values step size domain. modified form mid-point rule problems. rate convergence proved to be theoretically numerically. Experimental results show performance based on metrics such as stability function, region, star fingers, theoretical convergence, absolute relative errors, percentage accuracy local global truncation errors numerically graphically.

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ژورنال

عنوان ژورنال: Soft Computing

سال: 2022

ISSN: ['1433-7479', '1432-7643']

DOI: https://doi.org/10.1007/s00500-022-07288-1