arithmetic

Meanings

1. 1
   adj

   relating to or involving arithmetic

   arithmetical computations

2. 2
   noun

   The mathematics of numbers (integers, rational numbers, real numbers, or complex numbers) under the operations of addition, subtraction, multiplication, and division.

   Note that all correctly rounding arithmetics satisfy property A1, as do those with properly truncating addition. All faithful binary arithmetics and all arithmetics with either properly truncating or correctly chopping addition satisfy property A2.

3. 3
   adj

   Increasing or decreasing by an arithmetic progression.

   Near-synonym: linear

4. 4
   adj

   Of, relating to, or using arithmetic; arithmetical.

   arithmetic geometry

5. 5
   adj

   Of a progression, mean, etc, computed solely using addition.

   arithmetic progression

6. 6
   noun

   the branch of pure mathematics dealing with the theory of numerical calculations

7. 7
   noun

   Number theory.

Etymology

Etymology tree Proto-Indo-European *h₂er- Proto-Indo-European *-éh₁ti Proto-Indo-European *h₂reh₁- Proto-Indo-European *-éyti Proto-Indo-European *h₂rey-der. Ancient Greek ᾰ̓ρῐθμός (ărĭthmós) Proto-Indo-European *-eti Proto-Indo-European *-eyéti Proto-Indo-European *-esyéti Proto-Indo-European *-éh₁ti Proto-Indo-European *-yeti Proto-Indo-European *-éh₁yeti Proto-Indo-European *-yeti Proto-Indo-European *-éyeti Ancient Greek -έω (-éō) Ancient Greek ἀριθμέω (arithméō) Proto-Indo-European *-tis Ancient Greek -τις (-tis) Ancient Greek -σῐς (-sĭs) Proto-Indo-European *-kos Ancient Greek -κός (-kós…