Referring to multiple columns

Hi,

mat =

 7    8    9   10

 12   10    8    6

How can I refer to the first two columns of the matrix above? Thanks in advance.

Answer 1

[Geoff Hayes]

Ahmet - if mat is your matrix, then to get the first two colums (and all rows) you could do

 mat(:,1:2)

which would give you

 7     8
 12    10

Note how the first colon indicates that we want all rows, and the 1:2 means that we want the columns one through two.