how to pick out postion in a vector

Hey guys, I have a vector a= [ 1,0,8,0,5,0,3,0,6,9] I want to run a for loop like this for p=1:length(a) if a ==0 spit out where in vector a the zeros are located end end Thanks

Answer 1

[Azzi Abdelmalek]

a= [ 1,0,8,0,5,0,3,0,6,9]
idx=find(~a)