Quitting smoking = depression? I quit smoking cigarettes seven days ago. I've quit before and I understand that this horrible loneliness and depression are just some of the withdrawal symptoms, but I don't know how to lessen the depression. Most of my friends are smokers, so I'm not going out much and I live alone.
A tessellation is a regular pattern made up of flat shapes repeated and joined together without any gaps or overlaps. These shapes do not all need to be the same, but the pattern should repeat. Another word for tessellation is tiling.
A simple example of a regular tessellation is a pattern made up of squares that touch on each side, as on a checkerboard. Semi-regular, or Archimedean, tessellations are made up of two or more different kinds of regular polygons such that the pattern at each vertex where the shapes meet is the same.