version 1.0.2 (588 KB) by Joel Lynch
Matrix Operator Extraction Toolkit - Tools to obtain the matrix form of common MATLAB linear operations (e.g. trapz, interp) for 1-2D grids


Updated Fri, 22 Jan 2021 17:01:22 +0000

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When performing repeated integration or interpolation of large data-sets over fixed grids, it is often advantageous to access the bare-metal matrix operations behind linear functions like interp1, interp2, and trapz. Mat-Op-Ex Toolkit seeks to provide these matrices efficiently, and in a way accessible to the user to build on.

Mat-Op-Ex functions are designed to be analogous to their conventional counterparts, except that they receive no function data and output a matrix instead. To avoid dealing with high-order tensor operations, physical dimensions are always vectorized within these functions, such that the operator matrix is limited to order N=2. Further details are available in the source code files, along with examples and unit tests.

This solution is based heavily on a wonderful bit of code presented by Bruno Luong, and expanded here to be more generally applied.

Cite As

Joel Lynch (2022). mat-op-ex (, GitHub. Retrieved .

MATLAB Release Compatibility
Created with R2020b
Compatible with any release
Platform Compatibility
Windows macOS Linux
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To view or report issues in this GitHub add-on, visit the GitHub Repository.
To view or report issues in this GitHub add-on, visit the GitHub Repository.