How to modify one line of a matrix and get the entire matrix for result within the modification?

Hi,

For example I have : x = [ 1 2 3; 4 5 6]

If I want to have 1 2 3 multiplies by -1, how can I do? I want to get [-1 -2 -3; 4 5 6] for answer.

Because right now I am only able to do x(1, :)*-1 which gives me [-1 -2 -3]

Thanks!

Answer 1

[Jonas]

just assign the values like that:

x=[1 2 3; 4 5 6];
x(1,:)=-x(1,:)

[Gpilz]

Ohh great , it works perfect

Thanks a lot!