Perl Primer - University of California, Davis

Operator Meaning = Assign + Add - Subtract * Multiply / // Divide. ... (increasing or decreasing values for numbers, lexicographic order for strings), or unordered. Python has two types of lists, tuples and lists. Tuples are immutable, i.e. they cannot be modified once created, while lists are mutable, i.e. they can be modified once created. ................
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