The markings on walls and windows and poles and whatever leave the clear impression that Oak Cliff has some issues with graffiti. City numbers offer some added perspective. For the 12 months ...

Three letters, one number, a knife and a stone bridge: ... It is the most famous graffiti in mathematical history, but it looks rather unassuming: i ² = j ² = k ² = ijk = –1.

ALBUQUERQUE, N.M. (KRQE) – Graffiti pops up around Albuquerque overnight, it’s a never ending problem that keeps the solid waste department busy. For a few years, there appeared to be a dip i… ...