PLUS

Dictionary of Science, Literature and Art · 1854 · p. 25

In Algebra, the additive or positive sign -f-, which, beine placed between two quantities, signifies that they are to be taken collectively, or added together. AccordingtoDr. Hutton, this character was first used by Stifelius, as a contraction of the letter p, the initial of plus. [s. 960]