How can I find the first row of a specific number in a matrix?

Hello Matlab Users,

• I have a A matrix:
• A=[2 4;2 10;2 15;5 14;6 7;6 15;8 16;8 10] and I want to see the first row where I meet let's say "6"(which is the 5th row).Could you help me in solving that problem,please?

Answer 1

[Azzi Abdelmalek]

idx=find(any(A==6,2),1)

Answer 2

[Joseph Cheng]

you can use the find() function and search for when the first column in A contains "6".

[Rengin]

I don't know how to use it for that specific problem. Could you write me suitable codes for it,please?