current community chat blog Stack Overflow Meta Stack Overflow Careers 2.0 more stack exchange communities Stack Exchange sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site careers 2.0 Stack Overflow Questions Tags Tour Users Ask Question Take the 2-minute tour × Stack Overflow is a question and answer site for professional and enthusiast programmers. It's 100% free, no registration required. Why is printing “B” dramatically slower than printing “#”? [on hold] up vote 219 down vote favorite 30 I generated two matrices of 1000 x 1000 : The first matrix consisted of O and # . The second matrix consisted of O and B . Using ...