# Convert vector to matrix in Julia

To convert a vector to a matrix in Julia, you can use the `reshape` function. This function takes a vector and a tuple of dimensions and returns a matrix with the specified dimensions. Below are the examples:

## Convert vector to matrix in Julia Examples

```julia> a = [1, 2, 3, 4, 5, 6]
6-element Array{Int64,1}:
1
2
3
4
5
6

julia> reshape(a, (2,3))
2x3 Array{Int64,2}:
1  3  5
2  4  6```

In this example, the vector `a` is converted to a 2x3 matrix. You can also use the `hcat` or `vcat` functions to convert a vector to a matrix by concatenating it with itself or another vector. Here are some examples:

```julia> a = [1, 2, 3, 4, 5, 6]
6-element Array{Int64,1}:
1
2
3
4
5
6

julia> hcat(a, a)
2x6 Array{Int64,2}:
1  3  5  1  3  5
2  4  6  2  4  6

julia> vcat(a, a)
12-element Array{Int64,1}:
1
2
3
4
5
6
1
2
3
4
5
6```

In the first example, the vector `a` is concatenated horizontally with itself to create a 2x6 matrix. In the second example, `a` is concatenated vertically with itself to create a 12-element vector.