bisectguess
Versión 1.0.1 (3,51 KB) por
Geoff Stanley
bisectguess uses bisection and a guess of the root to provide a fast and robust root-finding method that is compatible with code generation.
A root of a function f is found by repeated bisection of a specified interval containing a sign change of f. An initial guess of the root can be provided (as for MATLAB's fzero), outwards from which an interval is geometrically expanded until a sign change is found, then bisection proceeds within that interval. (In the thumbnail image, a root of a quadratic is found, despite that the function is positive at both ends of its domain.)
Only one problem is solved at a time: f is a scalar function whose first argument is a scalar. Extra arguments of f are taken directly from extra arguments to bisectguess. To solve many problems, put bisectguess inside a for loop, inside a wrapper function. To make this fast, use code generation to turn the wrapper function into a fast MEX function -- encapsulating f in the MEX function too.
--- This package is no longer updated here. Instead, get updates from github:
Citar como
Geoff Stanley (2024). bisectguess (https://www.mathworks.com/matlabcentral/fileexchange/69710-bisectguess), MATLAB Central File Exchange. Recuperado .
Compatibilidad con la versión de MATLAB
Se creó con
R2017b
Compatible con cualquier versión
Compatibilidad con las plataformas
Windows macOS LinuxCategorías
- MATLAB > Mathematics > Linear Algebra >
Más información sobre Linear Algebra en Help Center y MATLAB Answers.
Etiquetas
Agradecimientos
Inspirado por: Bisection Method Root Finding
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!Descubra Live Editor
Cree scripts con código, salida y texto formateado en un documento ejecutable.