How to pass from vector to matrix

I'd want the code that given the vector B

B=[ 1 2 8 9 0 7 1 9 8 7 2 4 5 0 8 3 3 7 6 1]

return the matrix

B=[1 2 8 9 0; 7 8 9 1 7; 2 4 5 0 8; 1 6 7 3 3]

or for example:

from A=[ 1 2 4 3 0 1 5 3 7 9]

to A=[1 2; 3 4; 0 1; 3 5; 7 9]

thanks

[Guillaume]

How is the number of rows or columns of the result determined from the vector?

Answer 1

[madhan ravi]

Use reshape()

[Guillaume]

@cami, it's interesting that you've accepted this answer since reshape on its own is incapable of producing the result you asked. Now, if you'd answered my question you could have had an answer that did what you wanted.