Continuing the semi-annual tradition, I am excited to announce the latest release of MATLAB and Simulink, R2009a.  Check out the Simulink release notes to get the full details of the release.  Here... 続きを読む >>

Often models are the predecessor to a real-life device; however, sometimes a device inspires the model. In the 1980s, there was a group known as the Leg Lab at CMU who researched running robots.  In... 続きを読む >>

Do you ever have to model mechanical systems?  Mechanical systems consist of bodies, joints, and force elements like springs.  In this post, I will show you how to model a double pendulum with base... 続きを読む >>

Most Simulink models use workspace variable to define the important parameters.  For example, setting the gain value to K and then defining K in the workspace.  I wrote about initializing these... 続きを読む >>

This week I want to pose a brainteaser that my colleague Jeff had to solve this week.  Imagine you need to detect the condition where a signal value might become NaN (Not A Number).  How do... 続きを読む >>

If you are like me, you read the doc, a lot.  I am often clicking on the help just to verify my understanding of a function’s syntax, or the behavior of a block.  That is why I wasn’t surprised to... 続きを読む >>

A Simulink developer caught me in the hall last week and asked me, “How do people use the Signal Conversion block?”  He was specifically interested in how people use Contiguous Copy mode, and if... 続きを読む >>

Happy New Year!  On New Year’s Eve, it snowed for most of
the day in Massachusetts.  On New Year’s Day, I went out to clear some snow
from my driveway.  When I stopped for a rest this beautiful white… 続きを読む >>

Simulink models often use parameters from the MATLAB base workspace.  However, Simulink does not save the MATLAB base workspace with the model.  This leads me to the following question: How do you... 続きを読む >>

In embedded systems, computation time and memory are critical resources.  Floating-point calculations require special floating-point units for efficient computation and this translates to... 続きを読む >>