Variable Order Derivatives

Version 1.4.0.0 (139 ko) par Duarte Valério
Functions for implementing fractional or complex order derivatives, when the order changes with time
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Mise à jour 10 mai 2010

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These functions calculate fractional or complex order derivatives, when the order changes with time. Riemann-Liouville, Caputo and Grünwald-Letnikoff definitions are provided; the three variations considered by Lorenzo and Hartley are considered. Fuzzy supervised implementations in Simulink, based upon Oustaloup's Crone approximations, are also provided.

Citation pour cette source

Duarte Valério (2025). Variable Order Derivatives (https://fr.mathworks.com/matlabcentral/fileexchange/24444-variable-order-derivatives), MATLAB Central File Exchange. Extrait(e) le .

Compatibilité avec les versions de MATLAB
Créé avec R2007b
Compatible avec toutes les versions
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Inspiré par : Gamma

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Version Publié le Notes de version
1.4.0.0

Files for variable order, linear phase Crone approximations have been added.
1.3.0.0

1) A nasty bug affecting variable complex order derivatives was fixed. 2) C^\infty interpolation of zeros and poles now uses exact Crone formulas only.
1.2.0.0

Required function gamma.m (from http://www.mathworks.com/matlabcentral/fileexchange/3572) now included.
1.1.0.0

Simulink files for complex orders now provided.
1.0.0.0