# How can I extract entries from a matrix and a vector into a new vector in a specific way?

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Saf el on 25 Nov 2017
Commented: Stephen23 on 25 Nov 2017
Hello, I want to extract the entries of a matrix and a vector into a new vector, like this:
M =
0.6000 0.8000
-0.8000 0.6000
t =
0.4000
0.8000
into this vector: v =
0.6000
0.8000
-0.8000
0.6000
0.4000
0.8000
How can I do it? and I would like to know how to do it the other way, like this: if v is given and I want to construct M and t from that v.

Stephen23 on 25 Nov 2017
To get the correct order:
>> [reshape(M.',[],1);t(:)]
ans =
0.60000
0.80000
-0.80000
0.60000
0.40000
0.80000
##### 2 CommentsShowHide 1 older comment
Stephen23 on 25 Nov 2017
>> V = [reshape(M.',[],1);t(:)];
>> reshape(V(1:4),2,2).'
ans =
0.60000 0.80000
-0.80000 0.60000
>> V(5:6)
ans =
0.40000
0.80000
>>

mounika on 25 Nov 2017
M = [0.6,0.8;-0.8,0.6]
t = [0.4;0.8]
M = reshape(M,4,1)
v = vertcat(M,t)
Otherway:
M = v(1:4,:);
M = reshape(M,2,2);
t = v(5:6,;);
##### 2 CommentsShowHide 1 older comment
Saf el on 25 Nov 2017
Edited: Saf el on 25 Nov 2017
Thank you for your help, but I need to have v like this: v =
0.6000
0.8000
-0.8000
0.6000
0.4000
0.8000
not this: v =
0.6000
-0.8000
0.8000
0.6000
0.4000
0.8000