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# About function conv

On Programmer » Matlab

1,602 words with 1 Comments; publish: Tue, 29 Apr 2008 16:35:00 GMT; (20046.88, « »)

Hello all,

I am facing a problem, it seems to be simple but honeestly it's

driving me crazy !

Im using matlab's built in function 'conv', to convolute 2 vectors

both of size 1*439 with double values. As it says in the help, this

function return a vector containing the convlved output. So i called

the function as follows:

h1 =conv(signal1,signal2);

It gives me an error saying : "Too many output arguments"

Can some one help me as why this error is occuring?

I know i can use function conv2 instead, but i would like to know

whats the problem in me using 'conv ' this way.

Thanks alot

Gehan

*http://matlab.todaysummary.com/q_matlab_2050.html*

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- 1 Comments
- gehan mustafa wrote:
>

> Hello all,

> I am facing a problem, it seems to be simple but honeestly it's

> driving me crazy !

> Im using matlab's built in function 'conv', to convolute 2 vectors

> both of size 1*439 with double values. As it says in the help, this

> function return a vector containing the convlved output. So i

> called

> the function as follows:

> h1 =conv(signal1,signal2);

> It gives me an error saying : "Too many output arguments"

> Can some one help me as why this error is occuring?

> I know i can use function conv2 instead, but i would like to know

> whats the problem in me using 'conv ' this way.

> Thanks alot

> Gehan

Why did you name your function conv?

Try this at the matlab prompt:

which conv -all

HTH,

John D'Errico

#1; Tue, 29 Apr 2008 16:36:00 GMT

- gehan mustafa wrote: