Published

New options for debugging in R2012b
Today I want to highlight R2012b features very useful when debugging a model. Using the simulation stepping and...

13 years ago

Answered
Variable Transport Delay Irregularities
The limitation mentioned here applies to the the Variable Time Delay, not the Variable Transport Delay. For the Time Delay, a de...

13 years ago | 0

Published

Resizing blocks in R2012b
This week I want to share two new ways of resizing blocks in R2012b. Those might seem very minor, but I think they can be...

13 years ago

Answered
Is it possible to model hard stops in simmechanics 2nd generation?
This central submission will show you how to interface the SimMechanics 2nd generation revolute with a Simscape rotational compo...

13 years ago | 0

| accepted

Answered
residual norm and unconverged equation error
Here are a few tips to make your model more robust to this error: - Try increasing the Consistency tolerance in the Solver Co...

13 years ago | 2

Published

You say “sȯ-dər”, I say “sōl-dər”
This week, guest blogger Jason Ghidella talks about solder joints. I say “sōl-dər” After reading Michael Carone’s ...

13 years ago

Answered
How can I implement conditional compilation logic in simulink and stateflow?
Subsystem and Model Variants allow conditional compilation: http://www.mathworks.com/help/ecoder/ug/example-of-variant-subsys...

13 years ago | 1

Published

Smart Signal Routing
This week guest blogger Michael Carone is here to talk about improvements to signal routing in Simulink R2012b. Smart...

13 years ago

Answered
Linearization of SimMechanics models
Try the function FINDOP from Simulink Control Design. It is designed for trimming models and is more powerful than TRIM.

13 years ago | 0

Published

New Ways to Explore a Model with Simulink R2012b
Last week I showed how to pan and zoom within one system of a model. This week, we will talk about your options to navigate...

13 years ago

Answered
why signal generator is not giving proper sawtooth wave for frequency of 1khz and run time of 100 seconds
See this: http://blogs.mathworks.com/seth/2009/07/14/refining-the-output-of-a-simulation/

13 years ago | 0

Published

Zooming and Panning in Simulink R2012b
As we highlighted recently, Simulink R2012b has a ton of new features. During the next weeks, we will try to provide as much...

13 years ago

Published

Configuring the MATLAB R2012b Desktop
As you probably know by now, a lot of changes happened in MATLAB R2012b. As with everything, changes in our environment...

13 years ago

Answered
Updating library information in script
Based on your description,. it looks like you want to PROPAGATE... not update. When looking here: http://www.mathworks.co...

13 years ago | 0

Answered
How can I mux or demux a bus of vectors?
You are making a bus of vectors. Based on your description you should go for an array of buses. Then you could use the For Ea...

13 years ago | 0

Answered
Analyse at a time step
If you need to execute a set of blocks or a function multiple time er time step, use the For or While action subsystem. Type ...

13 years ago | 0

Answered
Question on Simulink Callback Scope
Interesting... 1. The model workspace can be a MAT-file, but also a MATLAB file. Based on your description, this seems like w...

13 years ago | 1

Answered
Optimization - Evaluation of cost function requires the cost functions value at the last iteration
As far as I know, the cost function of any optimization problem should not depend on previous iterations.

13 years ago | 0

Published

Welcome Simulink R2012b!
We are happy to announce that MATLAB R2012b is released today! You will notice that the interfaces for the MATLAB desktop...

13 years ago

Answered
Dynamically Sized Inputs and Outputs
Give a look at this post about creating variable size signals and s-function: http://blogs.mathworks.com/seth/2011/06/28/vari...

13 years ago | 0

| accepted

Published

Simulink Debugger: Monitoring Variable Step Solver Performance
A few months ago I introduced my favorite command to analyze the performance of a variable-step solver. This week, I will...

13 years ago

Published

Running a Simulation Step by Step
As you probably know, when you simulate a model, there is a lot of stuff going on that you do not see. Yesterday I showed...

13 years ago

Published

Sneak Peek: Discover the New Look and Feel of Simulink R2012b
One of the benefits of working at MathWorks is seeing and working with the next release of MATLAB and Simulink before they...

13 years ago

Answered
Variant subystems with mixed discrete/continuous?
I would be surprised if this is because of the derivative block. Usually, inactive variant should completely disappear. - Ens...

13 years ago | 0

Published

Upgrading Simulink Libraries with Forwarding Tables and Transformation Functions
If you create and maintain Simulink libraries used in many models, or by many people, I think you will like this R2012a new...

13 years ago

Published

Breaking up a Stateflow Chart for Collaborative Development
This week I have been experimenting with a feature released in R2010b that I have not used before: Stateflow Atomic...

13 years ago

Published

My First Debugging Steps
Seth sometimes tells me: Grab the low hanging fruit. When debugging Simulink models, this means looking at the information...

13 years ago

Answered
Is it possible to pass a parameter which represents the "sampleTime" at a 2-Level S-function?
IT should be possible to do something like: block.SampleTimes = [block.DialogPrm(1).data 0]; to set the sample from a para...

13 years ago | 3

| accepted

Published

Why do we need Stiff ODE Solvers?
I hope you have noticed the new MATLAB Central blog: Cleve's Corner. Cleve once said "stiffness is an efficiency issue." ...

13 years ago

Answered
simscape/simelectronics stepper motor model not compatible with fuzzy logic controller?
As the error says... I recommend looking at the Subsystems Examples. More specificaly, give a look as "sl_subsys_semantics.md...

13 years ago | 0