Two questions regarding Matlab's Engine (running Matlab from C programs)

Hi,

I have Two questions regarding Matlab's Engine:

1. I've seen examples where the engine is used to find eigenvalues using engeval("D=eig(A*A')"). Suppose I have a function in Matlab called ComputeEigenValue(A), how can I call it using engval?

2. Suppose I wrote C code that uses the Matlab engine as part of a solution in Visual Studio. Can I compile it as usual from Visual Studio, or do I need to compile it from Matlab?

Thank you,

Gil.

[Gil]

So I'm trying to run a simple program following the tutorial:

http://www.mathworks.com/support/solutions/en/data/1-78077S/?solution=1-78077S

I got to section 4.d, but I'm not sure what to do. What's currently written under Under Configuration Properties->Debugging->Command is $(TargetPath). Do I need to replace it with C:\Program Files\MATLAB\R2010b\bin\win32 or with PATH= C:\Program Files\MATLAB\R2010b\bin\win32?

I tried both ways and I when I try to run the program, I get an error "unable to start program 'C:\Program Files\MATLAB\R2010b\bin\win32 The system cannot find the file specified.

Can someone please write what exactly I need to write under "Command"?

Thank you,

Gil.

Answer 1

[Walter Roberson]

engeval('Variable=ComputeEigenValue(A)');

I do not know about compilation.

[Gil]

Thanks, that's a huge help !!!

Gil

[James Tursa]

engEvalString(etc)

[Gil]

Thanks, but I don't understand your response. What is etc?

[Walter Roberson]

etc is the command you want executed.

[Gil]

OK, thank you.

[Gil]

I have another question regarding your answer - where should the function ComputEigenValue resise? how will the instance of Matlab will know about it?

Thank you,

Gil.

[Gil]

Never mind. I solved it.

Answer 2

[Kaustubha Govind]

See Compiling Engine Applications with IDE to compile your code in Visual Studio.

[Gil]

Thank you!!

I have another question: I'm trying to run a simple program following the tutorial:

http://www.mathworks.com/support/solutions/en/data/1-78077S/?solution=1-78077S

I got to section 4.d, but I'm not sure what to do. What's currently written under Under Configuration Properties->Debugging->Command is $(TargetPath). Do I need to replace it with C:\Program Files\MATLAB\R2010b\bin\win32 or with PATH= C:\Program Files\MATLAB\R2010b\bin\win32?

I tried both ways and I when I try to run the program, I get an error "unable to start program 'C:\Program Files\MATLAB\R2010b\bin\win32 The system cannot find the file specified.

Can someone please write what exactly I need to write under "Command"?

Thank you,

Gil.

[Gil]

never mind. I solved it.