How extract value form an array?

I have a array of 19x2 double. >> matrix

matrix =

   30.0000   20.0000
   28.7500   17.5000
   28.0000   16.0000
   27.5000   15.0000
   31.0000   22.0000
   32.5000   17.5000

If I want to extract some numeric value of this double array (for example) according to the number of the ind variable

   ind = find(A >= 0.123)

Where A is another variable related to matrix variable. How can I do?

[Azzi Abdelmalek]

What is the size of A?

Answer 1

[Azzi Abdelmalek]

Maybe you want

   matrix(ind,:)

[Francesco]

Thanks, It's ok!

Answer 2

[Paul]

matrix(ind)

Since ind contains two indices in this case, you can do:

matrix(ind(1))

to find the value corresponding to the first index only.