List of IPython Notebooks by Peter Norvig

Re:List of IPython Notebooks by Peter Norvig by ibrahima on Sunday July 31, 2016 @08:37PM (#12199612)

To add on, I think he's writing from a Lisp perspective, not general math notation.

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Re:List of IPython Notebooks by Peter Norvig by moron4hire on Sunday July 31, 2016 @09:14PM (#12199698)

That doesn't matter. It's just the basic associative property of addition in arithmetic. As such, it's present in all programming languages.

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Re:List of IPython Notebooks by Peter Norvig by Dylan16807 on Sunday July 31, 2016 @10:49PM (#12199954)

But in normal math it's easy to use n-ary addition.

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Re:List of IPython Notebooks by Peter Norvig by gjm11 on Monday August 01, 2016 @04:39AM (#12200930)

In Lisp too -- arguably easier than in most languages. To add 10+9+8 in Lisp you write (+ 10 9 8), a single 3-ary call to +. In, say, C you write 10+9+8 and the parser turns that into two 2-ary additions.

(Of course, in either language you end up with two 2-operand ADD instructions in the object code. Nothing has hardware for arbitrary n-ary adds!)

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Re:List of IPython Notebooks by Peter Norvig by B1FF_PSUVM on Monday August 01, 2016 @03:23AM (#12200709)

Nowadays math mostly ends up in a CPU crunching two inputs at a time.

If you don't write it so explicitly, a compiler will do it for you anyway.

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Re:List of IPython Notebooks by Peter Norvig by monorailz on Sunday July 31, 2016 @09:04PM (#12199673)

Thank you both, that makes sense.

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