There is an annoying error: % is not 'modulo', it's the (less useful) remainder operator. julia> -1%9 -1 julia> mod(-1, 9) 8 python >

There is an annoying error: % is not 'modulo', it's the (less useful) remainder operator. julia> -1%9 -1 julia> mod(-1, 9) 8 python >>> -1%9 8