Python<DELIMITER/>Mathematica<DELIMITER/>remarks

`[1, 2, 3]` (list), `(1, 2, 3)` (tuple)<DELIMITER/>`{1, 2, 3}`<DELIMITER/>List is mutable but tuple isn't. Tuple can be used as hash keys.

`[[1], [2], [3]]`<DELIMITER/>`{{1}, {2}, {3}}`<DELIMITER/>

`[[1,2],[3,4]]`<DELIMITER/>`{{1, 2}, {3, 4}}`<DELIMITER/>

`# this is a comment`<DELIMITER/>`(* this is a comment *)`<DELIMITER/>

`command1
command2`<DELIMITER/>`command1; command2;`<DELIMITER/>In both Mathematica and Python, `;` indicates the end of a command and suppresses its output.

???<DELIMITER/>`command1; command2`<DELIMITER/>Python commands can be chained by `,`; Mathematica commands can't be chained by `,`.

`'Hello world!'`, `"Hello world!"`, `'''Hello world!'''`, `"""Hello world!"""`<DELIMITER/>`"Hello world!"`<DELIMITER/>Python uses four varieties of quotes for enclosing strings. Mathematica uses double.

`range(5,25,2)` or `list(range(5,25,2))`<DELIMITER/>`Range[5, 25, 2]`<DELIMITER/>`list(range(5,25,2))` evaluates to a list object, while `range(5,25,2)` is a range object.


`x[2:4]`<DELIMITER/>`x\\[[2;;4]]`<DELIMITER/>slice expression

`x[2][3]`<DELIMITER/>`x\\[[2, 3]]`<DELIMITER/>
+
`list.append(x)`<DELIMITER/>AppendTo[list, x]<DELIMITER/>

`lambda x: x**2`<DELIMITER/>`#^2&`, or `Function[{x}, x^2]`<DELIMITER/>

`map(lambda x: x**2, range(5))`<DELIMITER/>`Map\\[#^2&, Range[5]]`<DELIMITER/>