Le 19/03/2015 11:31, Stephen a écrit :
> On 17/03/2015 20:58, Le_Forgeron wrote:
>> Le 17/03/2015 21:08, Stephen a écrit :
>>> On 16/03/2015 16:51, Le_Forgeron wrote:
>>>> Le 16/03/2015 16:05, Stephen a écrit :
>>>>> On 16/03/2015 14:33, Le_Forgeron wrote:
>>>>>> I have enough problems counting to 143 with both hands.
>>>>>
>>>>> Why am I thinking of The Chrysalids?
>>>>>
>>>> Because you do not count like me with your thumb to the segment of the
>>>> four other finger.
>>>>
>>>
>>> I was on the point of admitting defeat when it dawned on me what you
>>> meant.
>>> It sounds cumbersome. It must look like two spiders being romantic. ;-)
>>>
>> Each hand stays on its side. Just base 12 with 2 digits.
>>
> 
> The base 12 I got. I just can't visualise how you keep your place.
> 
> I curl the fingers on my left hand for the digits 1 to 5. And if I curl
> the fingers on my right hand, in a binary fashion, for 5, 10, 15, 20...
> up to 155. So I can count up to 160 or in the range -80 to +80.
> (I have had some boring jobs in my life.)
> 
> I am trying to reverse the opinion that counting on your fingers is a
> sign of being poorly educated. So I am always on the lookout for
> different ways to do it.
> 

thumb is a cursor, going over the 12 different places (one per bone) of
the 4 remaining fingers.
0,1,2 on index
3,4,5 on middle
6,7,8 on ring
9,10,11 on pinky

-- 
Just because nobody complains does not mean all parachutes are perfect.

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