applying norm function to rows of matrix - Matlab [duplicate]

Question

I have a 3 columns, n rows matrix:

[ a,b,c;   d,e,f;   g,h,i; ] 

I want to apply the norm function to each of the rows, and get a 1xn matrix containing the norms:

[ norm([a,b,c]);   norm([d,e,f]);   norm([g,h,i]); ] 

I could do this with a for-loop, but is there a better way?

Answer 1

What about

 norms = sqrt(sum(A.^2,1)) 

or

 norms = sqrt(sum(A.^2,2))? 

depending on whether your coordinates are in rows or in columns.