diffxy

Version 1.2.0.0 (65.8 KB) by Darren Rowland
Second-order accurate numerical differentiation (N-dimensional)
5.0
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3.2K Downloads
Updated 8 Nov 2010

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In its simplest usage DIFFXY uses a second-order accurate scheme to approximate the derivative of a vector y with respect to a vector x. It differs from existing functions in the following ways:

- returns dydx having the same size as y (unlike DIFF which reduces the dimension by 1)
- special treatment of end-points for higher accuracy
- specifically built to handle unequally spaced data

DIFFXY also has the following capabilities

- x and y can be N-dimensional arrays
- operate on chosen dimension of N-d arrays
- computes higher-order derivatives via iteration

See the Help section and demo file for examples and further information.
Please suggest any improvements/report any bugs either in the comments or via email.

Cite As

Darren Rowland (2024). diffxy (https://www.mathworks.com/matlabcentral/fileexchange/29312-diffxy), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R14
Compatible with any release
Platform Compatibility
Windows macOS Linux
Categories
Find more on Linear Algebra in Help Center and MATLAB Answers
Acknowledgements

Inspired by: derivative

Inspired: DGradient

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Version Published Release Notes
1.2.0.0

9 Nov 2010 - minor update to demo file to correct figure legend and screenshot
1.0.0.0