Unfamiliar Notation/Symbol (1 Viewer)

[Cleavage]

For the following question (taken from NSBHS 2014 Trial MX2);



What is the square bracket-like symbol, and is it part of the syllabus or something taught unique to the cohort out of interest?

Thanks for help!

 

[zhiying]

It's just as how it is defined in the question, it means you take x, and you round it up to the next integer. So if x=2.5 then it would be 3

 

[Cleavage]

It's just as how it is defined in the question, it means you take x, and you round it up to the next integer. So if x=2.5 then it would be 3

Oh, alright. Thanks very much.

 

[Carrotsticks]

http://en.wikipedia.org/wiki/Floor_and_ceiling_functions

 

[Fade1233]

What is the proof of this?

 

[Carrotsticks]

What is the proof of this?

View attachment 30957

There are plenty out there.

https://proofwiki.org/wiki/Euler's_Formula

 

[trapizi]

This is way too off the syllabus