A branch of mathematics that deals usually with integers, rational numbers, real numbers, or complex numbers under addition, subtraction, multiplication, and division. See also → compute, → computation, → count, → calculate, → calculus, → mathematics, → statistics.
O.Fr. arsmetique, from M.L. arithmetica, from Gk. arithmetike (tekhne) "(art, skill) of numbers," from arithmos "number."
Hesâb, from Ar. hisab.
miyângin hesâbi (#)
Fr.: moyenne arithmétique
Of n numbers a1, a2, ..., an, the quantity defined as: (a1 + a2 + ... + an)/n.
farâyâzi-yz hesâbi (#)
Fr.: progression arithmétique
A → sequence of n numbers or quantities such that the difference between any two successive terms is a constant. In particular, if a is the first term, the nth term is a + (n - 1)d, where d is the constant. Also called → arithmetic sequence.
Fr.: suite arithmétique
hesâb-e dorin, ~ dodoi (#)
Fr.: arithmétique binaire
A system of calculation in which the only numerals used are 0 and 1. All the real numbers are represented in terms of powers of 2.