zeros(3)
#>      [,1] [,2] [,3]
#> [1,]    0    0    0
#> [2,]    0    0    0
#> [3,]    0    0    0
zeros(0,3)
#>      [,1] [,2] [,3]
zeros(4,7)
#>      [,1] [,2] [,3] [,4] [,5] [,6] [,7]
#> [1,]    0    0    0    0    0    0    0
#> [2,]    0    0    0    0    0    0    0
#> [3,]    0    0    0    0    0    0    0
#> [4,]    0    0    0    0    0    0    0
zeros(1,4)
#>      [,1] [,2] [,3] [,4]
#> [1,]    0    0    0    0