How to Simplify a system of equations and find possible substitions (symbolic toolbox?
1 回表示 (過去 30 日間)
古いコメントを表示
Hello,
i've got 8 symbolic expressions and i want to simplify this system of equations together. So i've there identical expressions in 2 or more equations the number of mathematical computations can be reduced.
It is a symbolic problem using the symbolic toolbox.
4 件のコメント
Dyuman Joshi
2024 年 1 月 9 日
What would you do with the simplifed system? Solve it for the parameters?
採用された回答
Walter Roberson
2024 年 1 月 9 日
If you use matlabFunction and request that it be written to a file, then the default is to optimize. The optimization step involves searching for common subexpressions and assigning them to variables and reusing the variables.
The end result is a .m file that is intended for numeric calculation.
Caution: not very long ago, optimization was badly broken, so test before trusting.
3 件のコメント
Walter Roberson
2024 年 1 月 9 日
I haven't tested over the last couple of releases, but not very long ago, the optimization phase had a series of problems for a number of years. It was completely unusuable for longer expressions.
その他の回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で Symbolic Math Toolbox についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!