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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
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
Glossary of mathematical symbols - Wikipedia Glossary of mathematical symbols A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula or a mathematical expression
Sign (mathematics) - Simple English Wikipedia, the free encyclopedia In addition to the sign of a real number, the word sign is also used in various related ways throughout mathematics and other sciences: In graph theory, a signed graph is a graph in which each edge has been marked with a positive or negative sign