converting all array elements into positive elements

I have an aray like this:

A=[1 -3 -1 4]

I would like to have the same elemnt but with all elements have been converted to positive

Then,

A=[1 3 1 4]

Any suggestions? Thank you in advance.

Answer 1

[madhan ravi]

A = abs(A)

[Mohammed Qahosh]

madhan ravi Thank you very much for your help.