Mathematica 9 is now available
Student Support Forum
-----
Student Support Forum: 'Applying function on only a part of list' topicStudent Support Forum > General > "Applying function on only a part of list"

Next Comment >Help | Reply To Topic
Author Comment/Response
Jan Klouzny
05/28/07 4:22pm

Hi. I'm sorry to repeat this question, because I know somebody's asked before me, but I can't find out it in this forum again. I have (very simple talked)

a = { {1,2},{1,3},{1,4} }

and I want For[i=1, i<= Length[a], a[[i,2]]=a[[i,2]]*100; i++]

I want to ask You how to write it simplier, e.g. apply *100 on all second elements of list a. Better to say how can I change all elements in the i-th column of matrix without For[i=1, i<=...]. I want something like a[#,2]*=100, where # are all possible integers in matrix a. Thanks a lot for help

URL: ,

Subject (listing for 'Applying function on only a part of list')
Author Date Posted
Applying function on only a part of list Jan Klouzny 05/28/07 4:22pm
Re: Applying function on only a part of list yehuda ben-s... 05/29/07 10:33pm
Next Comment >Help | Reply To Topic