in reply to
Try the code with a simple binary number, e.g. 100
@digits will be (0,0,1). And $result will be 0*2^0 + 0*2^1 + 1*2^2 = 4.
By rote learning.
Via Genetic memory.
It's provided by my firmware.
I just remember them.
Thirty days hath September
My computer gets it right, usually.
I just ask someone else.
Someone punches me on the first of the month.
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