Oli Glaser wrote:

> On 28/02/2011 12:49, Gerhard Fiedler wrote:
>> Oli Glaser wrote:
>>
>>> (I think you are taking addition to have precedence over subtraction)
>> FWIW, this wouldn't be a problem, since they have same precedence and
>> are associative (which means that the order of operations doesn't
>> matter).
>=20
> The order of operations is exactly what caused the initial problem for Jo=
e:
> 2010 - (2008 + 2) =3D 0
> (2010 - 2008) + 2 =3D 4

AIUI, this is not about an "order of operation" problem, this is about
using wrong operations.


The first is=20

  2010 - 2008 - 2

or better

  2010 + (-2008) + (-2)


The second is

  2010 - 2008 + 2

or better

  2010 + (-2008) + 2


The difference is not the order of the operations, but simply using
wrong operations. In both of these

  2010 + (-2008) + (-2)
  2010 + (-2008) + 2

it doesn't matter in which order the operations are executed.=20

Gerhard
--=20
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