Convert matrix A to S

Hello,

I try to convert ths matrix (called A)

A = [5 8 3; 1 2 3; 2 4 6] 

to a matrix called S, using this code

S =
1    2
5    8
9   10

S=[A(1,1:2); A(2:3,1).'; 9 10]

This is not qute right

Any ideas? Thank you

[Stephan]

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Answer 1

[Stephan]

S=[A(2,1:2); A(1,1:2); 9 10]

[SuzieChan]

Thanks.

This is matrix Z

Z = [7 6 8; 8 9 10; 7 3 2; 3 0 2]

What code to convert Z to S?

S =

1 2

5 8

9 10

S=[Z(3, 1:2); Z(1:2); 9 10]

This is wrong code.

There is no 5 in Z?

How possible?

Help please :)

[Stephan]

• Please dont accidently delete your questions by editing them ;-) - use the comment function please.

• Also please accept useful answers.

regarding your problem:

In the middle section you look at matrix B not Z:

S=[Z(3, 1:2); B(1:2); 9 10]

Perhaps it would be easier to help if you tell us more background of your problem - the conversion you are trying to do dont give much sense for me at the moment. What is the reason and the background? Please clarify.

[SuzieChan]

I changed B to Z (it was mistake).

I want to convert matrix Z to matrix S using the code starting S = ...

[Stephan]

What are the rules for converting?

Z =

     7     6     8
     8     9    10
     7     3     2
     3     0     2
     
S =

     1     2
     5     8
     9    10

There is no pattern visible - at least for me. I dont see a 1, i dont see a 5 - so how are the rules? PLEASE give us some background information....

[SuzieChan]

I see all numbers in Z except 1 and 5.

So is possible to insert 1 and 5 into new code, S?

Where do I place them?

example..

S=[1 5; Z(1:2); Z(1:2)]

something like

S=[1; Z(1:2); 5; Z(1:2)]

to manually put 1 and 5 in new matrix S

how?

[Stephan]

>> S = [1 Z(3,3); 5 Z(2,1); Z(2,2:end)]

S =

     1     2
     5     8
     9    10