File Exchange

image thumbnail

nd5p.m

version 1.0.0.0 (556 Bytes) by YangQuan Chen
Numerical differentiation for an equi-spaced one-dim array.

1 Download

Updated 02 Jun 2003

No License

Numerical differentiation for an equi-spaced one-dim array. Five-point numerical differentiating using local cubic polynomial fit.

For more information, see
http://www.csois.usu.edu/people/yqchen/dd/index.html

Cite As

YangQuan Chen (2021). nd5p.m (https://www.mathworks.com/matlabcentral/fileexchange/3515-nd5p-m), MATLAB Central File Exchange. Retrieved .

Comments and Ratings (3)

Mahdi S. Hosseini

A generalized framework called MaxPol has been recently published and made available here
https://www.mathworks.com/matlabcentral/fileexchange/63294-maxpol-smoothing-and-differentiation-package

MaxPol provides a framework to design variety of numerical differentiation kernels with properties like:
(1) Cutoff (lowpass) design with no side-lob artifacts (for noise-robust case)
(2) Arbitrary order of differentiation
(3) Arbitrary polynomial accuracy
(4) Derivative matrix design
(5) 2D Derivative Kernels with Steering moments
(6) Intuitive examples in Signal and Image processing

Nii allotey

I programmed this in Mathcad and used it to differentiate some earthquake time-histories. Gave very good results. Thanks to Dr. Chen.

e lee

Works!

MATLAB Release Compatibility
Created with R13
Compatible with any release
Platform Compatibility
Windows macOS Linux

Community Treasure Hunt

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

Start Hunting!