converting all array elements into positive elements

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Mohammed Qahosh
Mohammed Qahosh 2019-6-15
评论： Mohammed Qahosh 2019-6-16
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.

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madhan ravi
madhan ravi 2019-6-15
A = abs(A)

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