# Preliminary releases and patches

Home Forums FOMCON toolbox: Support forum Preliminary releases and patches

Viewing 6 posts - 1 through 6 (of 6 total)
• Author
Posts
• #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 6 years, 9 months ago by Aleksei.
• This reply was modified 6 years, 9 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 6 years ago by Aleksei.
#1040
Pritesh Shah
Guest

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.

Viewing 6 posts - 1 through 6 (of 6 total)
• You must be logged in to reply to this topic.