76 lines
1.9 KiB
Julia
76 lines
1.9 KiB
Julia
### A Pluto.jl notebook ###
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# v0.12.4
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using Markdown
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using InteractiveUtils
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# ╔═╡ e3714204-171a-11eb-26fa-49ac37906267
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A = [1 2 3; 4 5 6; 0 -1 -2]
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# ╔═╡ d6eae3c0-1772-11eb-2201-1b65698a58ec
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# first column
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A[:,1]
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# ╔═╡ e4c54bde-1772-11eb-2294-8f1518fc1fa8
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# second row
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A[2, :]
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# ╔═╡ 102fd8de-1773-11eb-190e-f996b16a142f
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# first and third column
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A[:, [1, 3]]
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# ╔═╡ 4615b194-1773-11eb-3e57-d73209a2d678
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# linearize
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A[:]
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# ╔═╡ 4c962cba-1773-11eb-0282-dd37ec1e6e34
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# copy
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A[:,:]
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# ╔═╡ 63b4a638-1773-11eb-3996-afd85f3cf84d
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a = [1,2,3]
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# ╔═╡ 6c35c5b0-1773-11eb-221e-ab614573e9f1
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b = [3, 2, 1]
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# ╔═╡ 6f0e4372-1773-11eb-21c8-699fc4b08e30
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# concatenate a and b horizontally
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B = [a b]
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# ╔═╡ 98d3921e-1773-11eb-1142-81d5c5810c73
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hcat(a, b) # same as above
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# ╔═╡ 8311bde0-1773-11eb-03f4-475d1d442217
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C = [transpose(a); transpose(b)]
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# ╔═╡ ab0133a8-1773-11eb-2146-73b3545d2535
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vcat(a', b')
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# ╔═╡ ce434a54-1773-11eb-1d87-31d162118b6e
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# or...
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hvcat(3, a..., b...) # a and b are expanded
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# ╔═╡ f65962bc-1773-11eb-2633-7d309d3f9b0d
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# also works with matrices:
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[A B]
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# ╔═╡ 03951c1e-1774-11eb-1d2e-d91a717a1b05
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[A; C]
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# ╔═╡ Cell order:
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# ╠═e3714204-171a-11eb-26fa-49ac37906267
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# ╠═d6eae3c0-1772-11eb-2201-1b65698a58ec
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# ╠═e4c54bde-1772-11eb-2294-8f1518fc1fa8
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# ╠═102fd8de-1773-11eb-190e-f996b16a142f
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# ╠═4615b194-1773-11eb-3e57-d73209a2d678
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# ╠═4c962cba-1773-11eb-0282-dd37ec1e6e34
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# ╠═63b4a638-1773-11eb-3996-afd85f3cf84d
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# ╠═6c35c5b0-1773-11eb-221e-ab614573e9f1
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# ╠═6f0e4372-1773-11eb-21c8-699fc4b08e30
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# ╠═98d3921e-1773-11eb-1142-81d5c5810c73
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# ╠═8311bde0-1773-11eb-03f4-475d1d442217
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# ╠═ab0133a8-1773-11eb-2146-73b3545d2535
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# ╠═ce434a54-1773-11eb-1d87-31d162118b6e
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# ╠═f65962bc-1773-11eb-2633-7d309d3f9b0d
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# ╠═03951c1e-1774-11eb-1d2e-d91a717a1b05
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