matrix operation

hi i am using guide.here i use a matrix of size 50 by 50. I want to delete a particular column of that matrix . the column no is given by user & that column will be deleted & save the new matrix to a text file. How i do that. Plz plz help me.

Answer 1

[Grzegorz Knor]

You can delete column in this way:

a = rand(50);
a(:,3) = [];% deletes 3rd column

For other questions see documentation:

doc input
doc save