Warp wrote:
> Orchid XP v8 <voi### [at] devnull> wrote:
>>>   Unfortunately not many people have that kind of deduction power at
>>> that age (or at any age).
> 
>> For what it's worth, I can never ever remember *exactly* what the 
>> correct formula for that is. It's roughly half the square, but I can 
>> never remember the exact figure.
> 
>   You shouldn't memorize the formula (like most people do). You should
> understand where it comes from (as I wrote in my previous post).

Indeed yes. It just takes a minute or two to puzzle it out each time, 
which is mildly irritating...

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