On 28/02/2011 07:08, IVP wrote:
> Well, I really did think I had the operator precedence correct
>
> ( ) * / + -
>
> By "my" order
>
> (floor(2010 / 4)+2) is worked first =3D 504

I don't think so - if you look there is no bracket on the left of floor.=20
The middle part is:
(2010 - 4 * floor(2010 / 4) + 2)

So if you follow the order you do floor(year / 4) first
=3D (2010 - 4 * 502 + 2)
Then multiply first
=3D (2010 - 2008 + 2)

Then (to answer the bit below) addition and subtraction both have equal=20
precedence, so it is the sum of 2010 + (-2008) + 2
or just from left to right to get 4.

> then 504 * 4 =3D 2016, then 2016 / 3 =3D 672
>
> Your line
>
> 1 + ((2010 - 2008 + 2) / 3) =3D 1 + 4/3
>
> by "my" order would give the result
>
> 1 + ((2010 - 2010)/3) =3D 1 + 0/3
>
> because the ( ) outside 2010 - 2008 + 2 have precedence over /3
>
>> >  There is an example here:
>> >  http://williams.best.vwh.net/sunrise_sunset_example.htm
> Thanks. That's helpful in seeing how the rules were bent (IMVHO)
> to get the right answer

I think (IMVVHO :-) ) it's actually right (I think you are taking=20
addition to have precedence over subtraction)
but it wouldn't have hurt to put brackets in there to prevent any=20
ambiguity. Or a link to the example with some comments.

> Harumph;-)
>
> Joe


--=20
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