Variable Order Derivatives

Versione 1.4.0.0 (139 KB) da Duarte Valério
Functions for implementing fractional or complex order derivatives, when the order changes with time
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Aggiornato 10 mag 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.

Cita come

Duarte Valério (2024). Variable Order Derivatives (https://www.mathworks.com/matlabcentral/fileexchange/24444-variable-order-derivatives), MATLAB Central File Exchange. Recuperato .

Compatibilità della release di MATLAB
Creato con R2007b
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Ispirato da: Gamma

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Versione Pubblicato Note della release
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