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1 changed files with 68 additions and 8 deletions
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@ -68,27 +68,33 @@ md"""
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5 / 2
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# ╔═╡ 02282f61-e1ca-483d-b6de-feeccedd7bc0
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# Remainder of division
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5 % 2
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# ╔═╡ e4237ccd-b042-408b-8177-4c0d31a28caa
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# Quotient of division
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5 ÷ 2
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# ╔═╡ d1bf37f9-5135-48b8-8f9b-84ddd4a86157
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md"""
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## Variables
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Variables store data 📦️
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"""
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# ╔═╡ 8d005ddd-0308-4a06-8bae-251387facf6f
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# Assignment
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a = 2
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# ╔═╡ b7d27cd4-a655-492e-b2b3-cdc745b2c2da
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b = 3
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# ╔═╡ 141950e5-e9f8-414b-b08d-86777428cbec
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# Change a or b above and see what happens
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# Change a or b above and see what happens 🪄
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a * b
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# ╔═╡ 2e7f29ce-3afa-4c12-838d-8051c0567e20
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# You can also store the result of a computation
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c = a + b
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# ╔═╡ 2121b949-06e7-4079-a25a-d0518ee2ba50
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@ -99,42 +105,80 @@ md"""
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- `Float16`, `Float32`, **`Float64`**
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- `Int8`, `Int16`, `Int32`, **`Int64`**, `Int128`
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- `UInt8`, `UInt16`, `UInt32`, `UInt64`, `UInt128`
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All other types (like strings) are composed.
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Spoiler: You can compose your own types! More about this later 😉
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"""
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# ╔═╡ 534f3b32-1fc9-4eed-887a-2cac66c2bdb4
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# Bool
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bo = true
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# ╔═╡ f20de3db-f270-4c43-aab7-692c313b5fa9
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# Char
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# Single quotes!
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ch = 'c'
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# ╔═╡ c72f187f-9626-45d9-870a-267c8530202c
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# String, not a char!
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# Double quotes!
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st1 = "c"
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# ╔═╡ e4295349-fc5c-48cb-975e-803e44d1a06e
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# Shows the type of a variable
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typeof(ch)
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# ╔═╡ 7287122b-e5ea-4f69-963b-023483914992
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typeof(st1)
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# ╔═╡ 8b6609b0-5d6d-4c7d-a144-deaff79f93e9
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# A string is a chain of characters
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hello = "Hello world!"
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# ╔═╡ 196682db-f5e1-4c07-9d35-644da3eecdd6
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md"""
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Pluto notebooks automatically print the output of the cell.
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When using scripts instead of notebooks, `println` is needed.
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"""
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# ╔═╡ 10fdb32f-b66f-4c4e-abd9-e856549941b8
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# Print to the console
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# ln stands for new line which is printed at the end of the output
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println(hello)
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# ╔═╡ 00ba151b-a741-448d-b8bf-775217250915
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# Float
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fl = 42.0
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# ╔═╡ 204cf77f-bf37-4110-9c9f-1f9236301ba9
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# Float64 is the default
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typeof(fl)
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# ╔═╡ 750bba32-e695-48f1-af70-70c94d13366b
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# Integer
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meaning_of_life = 42
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# ╔═╡ 0b663bcb-4ff4-4597-b28b-b58c9cbfa181
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# Int64 is the default
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typeof(meaning_of_life)
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# ╔═╡ 608d4433-6e68-4f95-8581-437234b58e87
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md"""
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## Converting
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## Convertion
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"""
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# ╔═╡ beadbfd3-0015-449a-b6e7-b5182b396c1d
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# Converting a float to an integer
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convert(Int64, 3.0)
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# ╔═╡ 552fafa4-fad5-4efe-895f-255b3ec5c858
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# Complex is a composed type for complex numbers
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convert(Complex, 3.0)
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# ╔═╡ d11fde7f-3238-4013-bd2d-546aab0d9f9c
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# This does not work!
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# This does not work! See rounding below.
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# convert(Int64, 3.2)
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# ╔═╡ 036a2c43-dbc9-487c-96aa-94324eeb4a52
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@ -143,10 +187,11 @@ md"""
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"""
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# ╔═╡ 1e954726-254e-41bb-a62f-17bdc9884bee
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# We have to tell Julia explicitely what to do
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# We have to tell Julia explicitely what to do when converting a float with non zero digits after the decimal point.
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round(Int64, 3.2)
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# ╔═╡ d74f6c46-f5a8-4720-bcaf-936f1508efda
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# The default is rounding to 0 digits after the decimal points, but keeping the float type.
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round(π)
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# ╔═╡ 3e5daca6-5aa8-42bf-988b-c09fb17388df
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@ -185,6 +230,7 @@ md"""
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"""
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# ╔═╡ 0596fe87-4201-476e-8e11-618c621c5474
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# Concatenation
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# ⚠️ Not +
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"Hello " * "world!"
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@ -192,21 +238,28 @@ md"""
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new_to_julia = "Hi, I am new to Julia!"
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# ╔═╡ da5fb1f9-2a2d-4148-8ba5-8c4a529829e9
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# check if a string is part of another one
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# ⚠️ Not in
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contains(new_to_julia, "Hi")
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# ╔═╡ 943da836-384d-4774-aaf4-54c27feb53d8
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# Split on occurrences of the provided delimeneter (comma here)
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split(new_to_julia, ",")
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# ╔═╡ a96f3ae9-12df-4df8-85da-09b9b1e47de1
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join(["Hello", "brave", "new", "world", "!"], " ", "")
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# Join a list of strings with a provided delimeter and last delimeter
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# Some of the used arguments are optional, see the docs 📚️
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# Lists are actually called vectors in Julia. More about this later!
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join(["Apple", "Banana", "Orange", "Lemon"], ", ", " and ")
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# ╔═╡ 8d106ad2-5f92-4138-bfff-56ee21e098fa
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# Multi line strings with three double quotes
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multi_line_string = """Line 1
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Line 2
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Line 3"""
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# ╔═╡ f8bc4051-93c6-4376-abaa-7b4cb4b8f607
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# To see the new lines (\n)
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println(multi_line_string)
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# ╔═╡ b25dc5f2-e186-4da1-b045-47b22c93799b
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@ -224,9 +277,11 @@ b
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a_mult_b = a * b
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# ╔═╡ d2607457-1794-4a0f-af41-cb80aadb598f
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# Use $ followed by the name of a variable to insert the variable into a string
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"The result of $a * $b is $a_mult_b"
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# ╔═╡ 23dbbe13-d997-4f9f-a300-7cb78c4fb8ee
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# Use brackets after $ to insert a result of computation instead of a variable
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"The result of $a * $b is $(a * b)"
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# ╔═╡ e767971a-7e1d-4a78-88d7-03e4ae4d51db
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@ -236,7 +291,7 @@ a_mult_b = a * b
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# ╔═╡ 9e3f698d-e57b-46c2-98e0-157fa7b06ae6
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md"""
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## Arrays
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An array is a **mutable** **ordered** collection of elements.
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An array is a **mutable ordered** collection of elements of the same type.
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Arrays can have one dimension (vector), two dimensions (matrix) or more (tensor).
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"""
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@ -662,10 +717,15 @@ uuid = "3f19e933-33d8-53b3-aaab-bd5110c3b7a0"
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# ╠═534f3b32-1fc9-4eed-887a-2cac66c2bdb4
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# ╠═f20de3db-f270-4c43-aab7-692c313b5fa9
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# ╠═c72f187f-9626-45d9-870a-267c8530202c
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# ╠═e4295349-fc5c-48cb-975e-803e44d1a06e
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# ╠═7287122b-e5ea-4f69-963b-023483914992
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# ╠═8b6609b0-5d6d-4c7d-a144-deaff79f93e9
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# ╟─196682db-f5e1-4c07-9d35-644da3eecdd6
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# ╠═10fdb32f-b66f-4c4e-abd9-e856549941b8
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# ╠═00ba151b-a741-448d-b8bf-775217250915
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# ╠═204cf77f-bf37-4110-9c9f-1f9236301ba9
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# ╠═750bba32-e695-48f1-af70-70c94d13366b
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# ╠═0b663bcb-4ff4-4597-b28b-b58c9cbfa181
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# ╟─608d4433-6e68-4f95-8581-437234b58e87
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# ╠═beadbfd3-0015-449a-b6e7-b5182b396c1d
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# ╠═552fafa4-fad5-4efe-895f-255b3ec5c858
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@ -695,7 +755,7 @@ uuid = "3f19e933-33d8-53b3-aaab-bd5110c3b7a0"
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# ╠═d2607457-1794-4a0f-af41-cb80aadb598f
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# ╠═23dbbe13-d997-4f9f-a300-7cb78c4fb8ee
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# ╠═e767971a-7e1d-4a78-88d7-03e4ae4d51db
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# ╠═9e3f698d-e57b-46c2-98e0-157fa7b06ae6
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# ╟─9e3f698d-e57b-46c2-98e0-157fa7b06ae6
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# ╟─d1680205-a8eb-4ef6-ae4f-059e7a30f5c1
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# ╠═b54ace0e-8947-46a3-842a-05b5cbfc4e87
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# ╠═8c47710f-1ed2-40fd-9290-374b498380e3
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@ -715,7 +775,7 @@ uuid = "3f19e933-33d8-53b3-aaab-bd5110c3b7a0"
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# ╠═65d3ddc2-36ed-4126-9211-e838ffc0d859
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# ╠═641e8c05-3e80-47e5-be77-91090a5f799a
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# ╠═2b9a5867-ca82-4a27-a700-bd0bd6c89bbe
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# ╠═87b43f26-7437-4ee9-9b83-5b21e86dd0c9
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# ╟─87b43f26-7437-4ee9-9b83-5b21e86dd0c9
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# ╠═22f5ebc1-fd5c-4ee7-b169-8144fbd9b570
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# ╠═7479c420-2e04-4fe7-823c-3fde9efb54ca
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# ╠═4cd82256-be63-4db1-b2af-82a1358f4881
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