A lot vs. Alot: 9 Grammatical Pitfalls
|magic square |
A square that contains numbers arranged in equal rows and columns such that the sum of each row, column, and sometimes diagonal is the same.
square matrix often divided into cells, filled with numbers or letters in particular arrangements that were once thought to have special, magical properties. Originally used as religious symbols, they later became protective charms or tools for divination; and finally, when the original meanings were lost, people considered them mere curiosities or puzzles-except for some Western mathematicians who continue to study them as problems in number theory.