row location info from matrix

I have 500*4 matrix and I want to find the row location where it holds the value I want. The problem is that there is some point that has the same value for different row. For example, my data would contain

.......

.......

.......

0.083821377996933 0.825816977489547 0.442678269775446 0.774910464711502 (139th)

0.228976968716819 0.538342435260057 0.106652770180584 0.817303220653433 (140th)

0.228976968716819 0.538342435260057 0.106652770180584 0.817303220653433 (141th)

.........

I want to get location of row where its 2nd component is in range of 0.53< 2ndComponent < 0.54,

3rd component is in range of 0.106< 3rdComponent <0.0107,

and minimum location value of number, so that it would come out to be 140 for this case.

Answer 1

[KSSV]

You can achieve your task with find. doc find.

Answer 2

[Image Analyst]

Try ismembertol()

Answer 3

[Guillaume]

This is simply combining comparisons:

row = find(yourmatrix(:, 2) > 0.53 & yourmatrix(:, 2) < 0.54 & ...
           yourmatrix(:, 3) > 0.106 & yourmatrix(:, 3) < 0.107, 1)