An Etymological Dictionary of Astronomy and Astrophysics

The branch of mathematics that deals with limits and the → differentiation and → integration of → functions of one or more → variables. Same as → infinitesimal calculus and → differential calculus .

Etymology (EN): L. calculus “small stone,” from calx, calcis “limestone,” → calculate, + -ulus diminutive suffix, → -ule.

Etymology (PE): Afmârik, from afmâr, → calculate

• Pers. suffix -ik denoting a subject, a branch of sciences, a discipline, → ics.