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Old 01-16-2005, 09:45 AM   #240 (permalink)
Joe Riel
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Re: Rim brake heat and spoke tension

"Philip Holman" <namlohip@comcast.net> writes:

> "Joe Riel" <joer@k-online.com> wrote in message
> news:87u0piz2ru.fsf@k-online.com...
>> "Philip Holman" <namlohip@comcast.net> writes:
>>
>>> Joe, should (n/2/pi) be (n/2pi).

>>
>> Division is left-associative. n/2/pi = (n/2)/pi = n/(2*pi).
>>

>
> Left associative? isn't that like saying you can only go east to
> west on a two way street :-)


Yeah, it's a little weird, but a standard computer-science term.
While many math operators (+, *, etc) are associative, a parser
invariably has to make them left or right associative. For example,
interpret a + b + c as (a+b)+c.

Note that if the word size is fixed then addition is not associative,
that is, (a + b) + c does not necessarily equal a + (b + c).


> Nice analysis by the way.


Thanks, I'm improving it. I hope to include the effect of rim bending
and make it available in a day or so.

Joe
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