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Title | Curious |
Description | What does "x = a + b" Efficiency (a virtue) is the child of laziness and greed (both vices), while much of our economic activity is devoted to preventing boredom in the idle time created by increases in efficiency. To be human is to be a strange creature indeed |
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Toggle navigation Curious Efficiency About Archives Tags RSS Python Notes What does "x = a + b" mean? Nick Coghlan 2019-03-16 06:06 Comments Making sense of "x = a + b" Shorthand notations and shared context The original shared context: Algebra The corresponding Python context: Numbers Another mathematical context: Matrix algebra The corresponding Python context: NumPy Arrays Python’s string concatenation context Python’s immutable sequence concatenation context Python’s mutable sequence concatenation context A brief digression back to mathematics: Multisets And back to Python once more: collections.Counter What does all this have to do with the idea of dictionary addition? Shorthand notations and shared context Guido van Rossum recently put together an excellent post talking about the value of infix binary operators in making certain kinds of operations easier to reason about correctly. The context inspiring that post is a python-ideas discussion regarding the possibility of adding a |
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