I came across this notation in the CAA module 0 sample questions. See photo:
It looks like it means lower bound but not sure. Can’t find any info. on google either. Anyone come across this notation before in this context? If so, what does it mean?
What does $[5.9]$ mean
ceiling-and-floor-functionsnotationrecreational-mathematics
Best Answer
It looks like the greatest integer (also known as floor) function.
It can also be denoted as $\lfloor 5.9\rfloor$.