Floor Function
Source:
July 27, 2008
function
Problem Statement
For each real number , denotes the largest integer less than or equal to , e.g. [6] \equal{} 6, [\pi] \equal{} 3, [\minus{}1.5] \equal{} \minus{}2. Indicate on the -plane the set of all points for which [x]^2 \plus{} [y]^2 \equal{} 4.