Preliminary releases and patches

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This topic contains 5 replies, has 2 voices, and was last updated by  Aleksei 4 years, 5 months ago.

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  • #510

    Aleksei
    Keymaster

    Since it takes quite long for me to accumulate enough tested features into a new toolbox release, this forum topic will serve as the source for preliminary/experimental feature and bugfix announcements. Links to temporary patches will be published here.

    #512

    Aleksei
    Keymaster

    Here is a patch for an issue with simulation/optimization of fractional-order systems with input-output delays reported here. Download: 0.3-alpha-patch-2013-03-05.zip

    Put the folders inside the patch into the fomcon root directory and overwrite the two affected files.

    #914

    Aleksei
    Keymaster

    This is a patch related to incompatibility of propertiesGUI used in FOMCON version 0.41-beta with MATLAB R2014a. Anyone using this version of MATLAB should download and apply the following patch: 0.41-beta-patch-2014_04_23.zip

    Put the folder inside the patch into the fomcon root directory and overwrite the affected file.

    • This reply was modified 5 years, 2 months ago by  Aleksei.
    • This reply was modified 5 years, 2 months ago by  Aleksei.
    #1037

    Aleksei
    Keymaster

    This patch addresses the problem with the norm() function for the fotf object: 0.41-beta-patch-2015_01_09.zip
    Put the folder inside the patch into the FOMCON root directory and overwrite the affected file.

    • This reply was modified 4 years, 5 months ago by  Aleksei.
    #1040

    Pritesh Shah

    It is giving warning as shown below:
    ——————————————-

    Warning: Reached the limit on the maximum number of intervals in use.
    Approximate bound on error is 3.2e+01. The integral may not exist, or
    it may be difficult to approximate numerically. Increase
    MaxIntervalCount to 764 to enable QUADGK to continue for another
    iteration.
    > In quadgk>vadapt at 297
    In quadgk at 149
    In fotf.norm at 27
    Warning: Reached the limit on the maximum number of intervals in use.
    Approximate bound on error is 9.1e+02. The integral may not exist, or
    it may be difficult to approximate numerically. Increase
    MaxIntervalCount to 888 to enable QUADGK to continue for another
    iteration.
    > In quadgk>vadapt at 297
    In quadgk at 149
    In fotf.norm at 27
    Warning: Reached the limit on the maximum number of intervals in use.
    Approximate bound on error is 5.8e+02. The integral may not exist, or
    it may be difficult to approximate numerically. Increase
    MaxIntervalCount to 872 to enable QUADGK to continue for another
    iteration.
    > In quadgk>vadapt at 297
    In quadgk at 149
    In fotf.norm at 27
    Warning: Reached the limit on the maximum number of intervals in use.
    Approximate bound on error is 1.9e+02. The integral may not exist, or
    it may be difficult to approximate numerically. Increase
    MaxIntervalCount to 764 to enable QUADGK to continue for another
    iteration.
    > In quadgk>vadapt at 297
    In quadgk at 149
    In fotf.norm at 27
    Warning: Reached the limit on the maximum number of intervals in use.
    Approximate bound on error is 1.4e+03. The integral may not exist, or
    it may be difficult to approximate numerically. Increase
    MaxIntervalCount to 812 to enable QUADGK to continue for another
    iteration.
    > In quadgk>vadapt at 297
    In quadgk at 149
    In fotf.norm at 27

    #1042

    Aleksei
    Keymaster

    It is likely that this is not a bug. For some systems the integral may indeed not converge. So, the result of computation of the norm depends on the system under investigation.

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