What are these bracketing symbols and what do they mean?
By Sarah Scott •
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What do the matching "L" shapes (near .5 and 20) mean in this forumla?
The document where I found this formula can be found here:
$\endgroup$ 12 Answers
$\begingroup$The bracketing symbol means Floor (see )
The definition of Floor is $\lfloor x \rfloor$ = Largest integer less than x. This is very similar to rounding down as $\lfloor 2.3 \rfloor = \lfloor 2.999 \rfloor = 2$. However, the subtlety is that for negative numbers it acts slightly differently, as $\lfloor -1.5 \rfloor = -2$ which might not be what you expect at first.
$\endgroup$ 0 $\begingroup$Floor function: Round down to the nearest integer.
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