Matrix exponential

版本 1.9.0.0 (9.6 KB) 作者: Kenneth Johnson
Matrix exponential algorithm with improved numerical precision
0.0
(0)
417.0 次下载
更新时间 2014/3/19

查看许可证

In the classical scale-and-square exponential algorithm, numeric precision is degraded by large diagonal terms in matrices that are nearly equal to the identity matrix. This variant algorithm separates out the identity matrix terms, preserving high precision with arbitrarily small scaling factors.
[Requires polyvalm_, File ID: #45786.]

引用格式

Kenneth Johnson (2025). Matrix exponential (https://www.mathworks.com/matlabcentral/fileexchange/45724-matrix-exponential), MATLAB Central File Exchange. 检索时间: .

MATLAB 版本兼容性
创建方式 R2013a
兼容任何版本
平台兼容性
Windows macOS Linux
类别
在 Help Center 和 MATLAB Answers 中查找有关 Matrix Exponential 的更多信息
标签 添加标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

版本 已发布 发行说明
1.9.0.0

Updated test cases to use MATLAB R2014A. (Previous version used R2013A.)
1.8.0.0

Spelling error in comments.
1.7.0.0

Corrected output specification in comment header.
1.6.0.0

Replaced two corrupted comment lines.
1.5.0.0

Noted requirement for polyvalm_ in Description.
1.4.0.0

No change - just trying to fix a problem in File Exchange UI.
1.3.0.0

- Added minusI optional input.
- Revised p polynomial definition to include leading I term.
- Use polyvalm_ to do the polynomial evaluation.
- Use more robust method for setting m and s.
- Modified test cases in comment header.
1.2.0.0

Added acknowledgment of Federal support and disclaimer.
1.1.0.0

Added reference to another good test case in program comments.
1.0.0.0