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Jonathan Currie


AUT University

13 total contributions since 2009

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Question


Efficiently multiplying diagonal and general matrices
I wish to find the most efficient way to implement the following equation M'*D*M where *M* is a m*n dense rectangular ma...

3 years ago | 2 Answers | 0

2

answers

Question


Simulink moves class object memory between C-MEX S-Function mdlStart() and mdlOutputs()?
I have a problem where Simulink/Matlab appears to be moving the memory location of a class object between mdlStart() and mdlOupu...

3 years ago | 0 Answers | 0

0

answers

Question


Different results between 2013a 32bit and 64bit in single precision
I am squaring and summing two numbers in single precision, yet I get different results (one bit) between Matlab 32bit and Matlab...

3 years ago | 2 Answers | 0

2

answers

Question


Differences calculating the sum of squares in single between sum() and a loop
*Update: Please Visit the Following Simplified Version of This Question* <http://www.mathworks.com/matlabcentral/answers/85211-...

3 years ago | 1 Answers | 0

1

answer

Answered
MATLAB will not start up after several crashes due to a bad MEX file
I develop a lot of MEX files (and thus crashes happen fairly frequently) and had this issue on every version of MATLAB (32bit an...

3 years ago | 1

Question


Symbolic Toolbox enforcing rational numbers when I want decimals
I am using the Symbolic Toolbox to generate analytical derivatives for optimization problems. However commonly I encounter somet...

4 years ago | 1 Answers | 1

1

answer

Responded


Re: Depth problem
Did you ever manage to solve this problem? I have just encountered the same in R2011b... Real pain!

4 years ago | 4393 views

Question


MATLAB crashes with big mfile
Hi all, Has anyone had experience with MATLAB crashing with a large mfile in the current directory? Specifically I have a...

5 years ago | 4 Answers | 1

4

answers

Answered
Animate Color in Simulink 3D Animation
Note you can also change the name of a material within VRealm or Simulink's 3D Editor, in a similar way you can change transform...

5 years ago | 0

Answered
Animate Color in Simulink 3D Animation
Hi Tom, just came across the answer to this myself! By default Simulink 3D cannot access a property without a name, which happe...

5 years ago | 0

Responded


Re: Accessing Managed DLL from Matlab
Arrh can't believe I didn't think of this earlier - Matlab has default .NET support! Just use ".NET.addAssembly(...)" for those ...

6 years ago | 2251 views

Posted


Accessing Managed DLL from Matlab
I have a managed (.NET) VC++ DLL I have written in VS2008, which I would like to use with Matlab. I have done extensive ponderin...

6 years ago | 2251 views

Posted


C S Function Rwork vs Global Variables
I am currently working on a C s function that uses considerable memory (10000+ doubles) for storing intermediate calculations. I...

7 years ago | 1897 views