How to find elements?

hi all, I have a matrix contains +ve, -ve and 0 values. how to find the elements in the range of the -ve values? thank you for help.

Answer 1

[Azzi Abdelmalek]

index=find(A==-ve)

[Lilya]

thank you Mr. Abdelmalek for your answer. How to find the range of the data? for example from -0.01 to -0.06

[Azzi Abdelmalek]

    B=A(A>-0.06 & A<-0.01)