Testing Julia

I just want to test Julia functionality.

using Pkg
Pkg.activate(".")
using LinearAlgebra

A = [1 2; 3 4]

2×2 Matrix{Int64}:
 1  2
 3  4

eigen(A)

LinearAlgebra.Eigen{Float64, Float64, Matrix{Float64}, Vector{Float64}}
values:
2-element Vector{Float64}:
 -0.3722813232690143
  5.372281323269014
vectors:
2×2 Matrix{Float64}:
 -0.824565  -0.415974
  0.565767  -0.909377

@online{dewitt2026,
  author = {Michael E. DeWitt},
  title = {Testing Julia},
  date = {2026-01-04},
  url = {https://michaeldewittjr.com/blog/2026-01-04-testing-julia/},
  langid = {en}
}
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