The Surprisingly Short History Of The Plus Sign - Fast Company 06-23-2014 DESIGN The Surprisingly Short History Of The Plus Sign Before the 16th century, most math equations were written as metered verse Thank god for graphic-design-inclined mathematicians
Definition of plus sign | PCMag What does plus sign actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia
Where and When Did the Symbols + and – Originate? The ancient Greeks expressed addition mostly by juxtaposition, but sporadically used the slash symbol " " for addition and a semi-elliptical curve for subtraction In the famous Egyptian Ahmes papyrus, a pair of legs walking forward marked addition, and walking away subtraction
Addition - Wikipedia Addition, usually denoted with the plus sign +, is one of the four basic operations of arithmetic, the other three being subtraction, multiplication, and division
Sign (mathematics) - Wikipedia The plus sign is predominantly used in algebra to denote the binary operation of addition, and only rarely to emphasize the positivity of an expression In common numeral notation (used in arithmetic and elsewhere), the sign of a number is often made explicit by placing a plus or a minus sign before the number