Advanced Search

Question: row column operations on an Array

Question:row column operations on an Array

Christopher2222 5785 Maple
array
August 11 2010
0

I'm finding limited information on how to do row or column operations on Arrays.  For example how to multiply a whole column by one number.  I have tried using the map command .... 

map(a->[a[1],-3*a[2],a[3]],a)  # multiply the third row in the array by -3 however brings an error.

This doesn't work for Array however it works on lists.  At the moment I can't think of how to do it without converting it to a list.  Any ideas?
Please Wait...