Abstract
AbstractThe CRONE Toolbox, developed since the nineties by the CRONE team, is a Matlab Toolbox dedicated to fractional calculus. It is currently evolving towards an object oriented version, which allows many enhancements. Three main user classes, dedicated to fractional systems representations namely fractional transfer functions (frac_tf), fractional zeros poles and gain (frac_zpk), and fractional state-space (frac_ss), are developed. All three user classes are children of a parent class (frac_lti) which contains some common attributes of fractional systems. Among enhancements of the object programming of the CRONE toolbox, is the overloading of basic operators (+, –, x, /, .x, …) and standard Matlab scripts (lsim, bode, nichols, …) for the new classes. As a consequence, an end user familiar with standard Matlab operators and scripts can use straightforwardly the CRONE toolbox. The main objective of this paper is to present class diagrams and principle features of the object oriented CRONE toolbox, which can be downloaded at http://cronetoolbox.ims-bordeaux.frcronetoolbox.ims-bordeaux.fr.
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