Scientific American spoke to Rojas about this history, the deeply engaging humanity of mathematics and the egos at play in defining the mathematical language we take for granted today.

Math is not everyone's favorite ... while following the greater than/less than symbols shown. There is only one valid ...

Though the standard may make use of standard symbols now used for piping and instrument diagrams, logic diagrams, loop diagrams, mathematical works, and other documents, it is generally expected to be ...