Add comparisons between julia and python

julia-vs-python/expressions.jl

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+x = 1
+println(2^2 + 5x)

julia-vs-python/expressions.py

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+x = 1
+print(2**2 + 5*x)
+print(2^2 + 5)

julia-vs-python/function.jl

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+function my_add(x, y)
+    return x + y
+end
+
+function my_add2(x, y)
+    x + y
+end
+
+my_add3(x, y) = x + y
+
+my_add4 = (x, y) -> x + y

julia-vs-python/function.py

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+def my_add(x, y):
+    return x + y
+
+my_add2 = lambda x, y: x + y

julia-vs-python/if.jl

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+x = 2
+
+if x % 2 == 0
+    println("x is even")
+else
+    println("x is odd")
+end

julia-vs-python/if.py

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+x = 2
+
+if x % 2 == 0:
+    print("x is even")
+else:
+    print("x is odd")

julia-vs-python/loops.jl

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+# sum the squares of integers 0 <= x < 10
+# which are not 0 mod 4
+result_squared = 0
+for x in 0:10
+    @isdefined(result)
+    if x % 4 != 0
+        global result_squared += x^2
+    end
+end
+result = sqrt(result_squared)
+
+println(result)
+
+alternative_result = ( 0:10 |> filter(x -> x%4 != 0) ) .^2 |> (sqrt ∘ sum)
+
+println(alternative_result)

julia-vs-python/loops.py

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+# sqrt of sum the squares of integers 0 <= x < 10
+# which are not 0 mod 4
+result_squared = 0
+for x in range(10):
+    if x % 4 != 0:
+        result_squared += x*x
+result = result_squared**0.5
+
+print(result)
+
+alternative_result = sum(
+    map(
+        lambda x: x*x,
+        filter(
+            lambda x: x % 4 != 0,
+            range(10)
+        )
+    )
+)
+
+print(alternative_result)

julia-vs-python/variables.jl

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+x = 1
+y::String = "hello"
+x = "bye"
+y = 1

julia-vs-python/variables.py

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+x = 1
+y = "hello"
+x = "bye"