how to convert collumn matrix (nxn) into another matrix of (mxn) type .

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Parvinder Singh 2017-10-17

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评论： Cedric 2017-10-17

I am working on my project where audio encryption is needed .I am stuck in a problem of converting column matrix into (mxn) type matrix. please help me its urgent

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KL 2017-10-17

What do you mean by "column matrix(nxn)"..?

Column matrix is supposed to have only one column, so it should rather be (nx1).

Parvinder Singh 2017-10-17

I mean to say column vector of (nxn) form

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Answer 1

Cedric 2017-10-17

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编辑：Cedric 2017-10-17

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Difficult to answer with that little detail.. Maybe:

M = reshape( v, n, n ) ;

or

M = reshape( v, n, [] ) ;

with a transposition ( .' ) afterwards if needed.

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Parvinder Singh 2017-10-17

编辑：Cedric 2017-10-17

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During the usage of RESHAPE function i have to mention that how many rows and column matrix we need.But in my case we have to assume n number of column vector which we have to transform in (mxn) . if i use reshape function then it looks like:-

   a=audiorecorder(8000,8,1);
   disp('start recording');
   recordblocking(a,5)
   disp('stop recording');
   play(a);
   b=getaudiodata(a);
   double (s);
   s= reshape (double(b), m, n);

here in our case we want m and n value by some logic rather look at the column vector value. Suggest me some logic and thanks for your previous suggestion.

Cedric 2017-10-17

I just don't understand what you want to achieve. After you stop recording, variable b is a 40000x1 vector. What do you want to do with it and why? Why a matrix?

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