228k views
3 votes
How does one solve this?

How does one solve this?-example-1
User Loufi
by
7.9k points

1 Answer

6 votes

I'd like to point out that's the "Ceil function", or Ceiling so-called, [[x]], the way it works is, it defaults to the greatest integer, for example

[[ 3.5 ]] = 4

[[ 4.0001 ]] = 5

[[ - 3.5 ]] = -3 <--- recall on the negatives, the closer to 0, the larger.

so [[ x ]], or to be properly formatted ⌈x⌉ namely ceil(x), as opposed to ⌊x⌋ which means floor(x).

anyhow, ⌈x⌉ or [[x]] as many books use, results in the greatest integer, as you see the examples above.

[[ 4.0001 ]] results in 5, because between 4 ........ 4.0001......... 5, 5 is the larger of the extremes.

[[ -3.5 ]], betweeen -4 ........ -3.5.........-3, -3 is the larger, since is closer to 0.

User Mark Harrison
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.