Category: General

What is a non-trivial matrix?

A solution or example that is not trivial. Often, solutions or examples involving the number zero are considered trivial. Nonzero solutions or examples ar...

What 4 numbers make 100?

Using the numerals 1,7,7,7 and 7 (a “1” and four “7”s) create the number 100. How do you use 123456789 to get 100? The strategy I would use is the followi...