[AusNOG] Looking for employees? Melbourne based

[Andrew Yager]

As recently as 10 years ago this was still taught at Uni. Degrees do still teach you some "useless" facts to get you through...

Andrew

Sent from my iPhone

> On 11 Oct 2013, at 6:48 pm, Paul Brooks <pbrooks-ausnog at layer10.com.au> wrote:
> 
>> On 11/10/2013 1:31 PM, Phillip Grasso wrote:
>> 
>> 0.2+0.1 = 0.30000000000000004
> I vaguely remember hand-calculating binary approximations of floating point arithmetic
> with pencil and paper, with a few left and right register shifts for scaling thrown
> in, to demonstrate these issues during CompSci at university. They actually taught it
> as a module.
> 
> Probably to make us aware of the dangers (or opportunities) of leaving computers to do
> floating point arithmetic with large numbers, allowing white-collar crims (or
> opportunists) to make a fortune off the missing rounding bit-errors.
> 
> 'Course, that was a while ago now....
> 
> (One of my favourite employment filters for network ops:
> 
> How long will a gigabit ethernet router port at full utilisation cause the
> byte-counter to wrap, if the byte-counter is a 96-bit register)
> 
> Paul.
> 
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