[blml] Fwd: Decimal HCP ranges.

[Jean-Pierre Rocafort]

Nigel a écrit :
> [nige1]
> Decimal notation (invented by Tim) is the most succinct and accurate
> I prefer the Walrus version ... eg 14.8-18.3 means 20% of 14s and 30% 
> or 18s qualify.
> [Jean-Pierre Rocafort]
> This one can't be ok: it's inconsistent. 14.8 lies between 14 
> (outside) and 15 (inside); you say it means that
> all 15 qualify, and some part of 14 (outside) qualify on the other 
> side, 18.3 lies between 18 (inside) and 19 (outside) and it
> means that some part of 18 (inside) qualify and no 19 qualify.
> the treatment of both sides is non-symetric
> 
> [nige1]
> 
> The basis of the Walrus version of decimal HCP notation is that 
> eligible hands with a given HCP span a one HCP range. 

  decimal notation and HCP appeared to be 2 distinct notions from 
previous posts, but... ok for the range of 1 which means that every 18 
hcp hand will remain weaker than any 19 hcp hand.

> Thus

i disagree with "thus", the following is not a consequence of the premise.

> the worst 18 HCP hands are at the bottom end: 18.0, 18.1, 18.2...
> And the best are at the top end ...18.8, 18.9, 19.0.

i don't see your "convention" as logical, nor convenient, nor intuitive.
as a simple soul, i would understand 18.0 to correspond to the most 
"normal" 18 hcp hands. the worst 18 hcp would be worth less than 18.0, 
say 17.5 for the purpose of the normalisation to 1-range, and the best 18.5

> 
> For example suppose the declared range is 14.8-18.3 HCP.
> The lower range limit of 14.8 means that only 20% of otherwise 
> eligible 14 HCP hands qualify i.e. hands in the range 14.8-15.0
> While an upper range limit of 18.3 means that 30% of otherwise 
> eligible 18 HCP hands qualify i.e. hands in the range 18.0-18.3
> 
> We did point out that the notation isn't intuitive :)
agreed again!

> but once 
> explained, I think experienced players could adapt to it and we walrus 
> would take to it like a mermaid to water.

i fear the category of experienced players would be very limited and 
walrus would be very puzzled.



jpr
> 

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