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What's New
Discover new features and enhancements.
Get Started
Discover Compose, including its language support and system requirements.
Tutorials
The Compose tutorials and associated example model files help introduce you to the basic functionality of the software.
User Guide
Learn about the features and functionality available in Compose.
Reference Guides
Reference guides are available for functions and commands supported by OML, Tcl, and Python.
- Scripting Guide for OpenMatrix Language
  OpenMatrix is a mathematical scripting language.
- Reference Guide for OpenMatrix Language Functions
  The Reference Guide contains documentation for all functions supported in the OpenMatrix language.
  - ABF Commands
  - Altair Integration Commands
  - Audio Commands
  - CAE Commands
  - CAE Reader Commands
  - CAE Reader 3D Commands
  - CAE Writer Commands
  - Calculus Commands
  - Computer Vision Commands
  - Communication Commands
  - Control System Commands
  - Core Minimal Interpreter Commands
  - Data Structure Commands
  - Differential Equations Commands
  - Elementary Math Commands
  - File I/O Commands
  - Geometry Commands
  - GUI Commands
  - HDF5 Reader Commands
  - HDF5 Writer Commands
  - hstpyfit Commands
  - Image Commands
  - JSON Commands
  - Library Manager Commands
  - Linear Algebra Commands
  - Logical Commands
  - Machine Learning Commands
  - Optimization Commands
  - Plotting Commands
  - PSIM Commands
  - Polynomial Math Commands
    - deconv
      Deconvolution of two vectors, or polynomial division.
    - interp1
      One dimensional interpolation.
    - interp2
      Two dimensional interpolation.
    - interpn
      N dimensional interpolation.
    - isonormals
      Compute normal vectors to an interpolated isosurface.
    - lookup
      Look up values in a sorted table.
    - mkpp
      Piecewise polynomial struct construction.
    - pchip
      Interpolate (x,y) data with a Hermite cubic polynomial.
    - poly
      Polynomial construction, either as a characteristic polynomial, or from its roots.2024.1
    - polyder
      Derivative of a polynomial.
    - polyint
      Integral of a polynomial.
    - polyval
      Evaluate a polynomial.
    - ppval
      Piecewise polynomial evaluation.
    - roots
      Compute the roots of a polynomial.
    - spline
      Interpolate (x,y) data with a cubic spline.
    - unmkpp
      Piecewise polynomial struct extraction.
  - Signal Processing Commands
  - Special Functions Commands
  - Statistical Analysis Commands
  - String Operations Commands
  - System Commands
  - Table Commands
  - Tcl Bridge OML Commands
  - Tcl Bridge Tcl Commands
  - Time Commands
  - Trigonometry Commands
  - OML to Python Bridge Commands
  - Python to OML Bridge Commands
- Python in Compose Reference Guide
Appendix
Get help for the optional libraries that are available in the Extension Manager.
Frequently Asked Questions
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Polynomial Math Commands