> julia> find(x->x>5,a)
> 5-element Array{Int64,1}:
> 1
> 2
> 7
> 8
> 10
>which very very sadly are Int64. When dealing with large matrices this may lead to a large memory waste. These almost mandatory 64 bits issue is one the things that annoyed me more in Matlab for many times it was the difference between having something work ... or not
