# ARITH-MATIC

You may have been looking for arithmetic, a branch of mathematics.

ARITH-MATIC is an extension of Grace Hopper's A-2 programming language,[1] developed around 1955. ARITH-MATIC was originally known as A-3, but was renamed by the marketing department of Remington Rand UNIVAC.

## Some ARITH-MATIC subroutines [2]

Type Subroutine Description Explanation
Arithmetic AAO(A)(B)(C) A+B=C The A in the middle of 'AA0' stands for addition
Arithmetic ASO(A)(B)(C) A-B=C The S in the middle of 'AS0' stands for subtraction
Arithmetic AMO(A)(B)(C) A*B=C The M in the middle of 'AM0' stands for multiplication
Arithmetic ADO(A)(B)(C) A/B=C The D in the middle of 'AD0' stands for division
Trigonometric TSO(A)OOO(B) Sin(A)=B The S in the middle of 'TS0' stands for Sin
Trigonometric TCO(A)OOO(B) Cos(A)=B The C in the middle of 'TC0' stands for Cos
Trigonometric TTO(A)OOO(B) Tan(A)=B The T in the middle of 'TT0' stands for Tan
Trigonometric TAT(A)OOO(B) Arctan(A)=B The AT stands for Arctan
Hyperbolic HSO(A)OOO(B) Sinh(A)=B The S in the middle of 'HS0' stands for Sin h
Hyperbolic HCO(A)OOO(B) Cosh(A)=B The C in the middle of 'TC0' stands for Cos h
Hyperbolic HTO(A)OOO(B) Tanh(A)=B The T in the middle of 'TT0' stands for Tan h
General Mathematical SQR(A)OOO(B) Sqrt(A)=B
General Mathematical APN(A)(N)(B) A**N=B **: Exponentiation

## References

1. ^ Sammet, Jean (1969). Programming Languages: History and Fundamentals. Prentice-Hall. p. 132. ISBN 978-0-13-729988-1.
2. ^ Ash R, Broadwin E, Della Valle V, Greene M, Jenny A, Katz C, Yu L (April 19, 1957). Preliminary Manual for MATH-MATIC and ARITH-MATIC Systems for Algebraic Translation and Compilation for Univac I and II (PDF) (Technical report). Philadelphia, Penn.: Remington Rand Univac. Retrieved 2016-09-23.

This article is based on material taken from the Free On-line Dictionary of Computing prior to 1 November 2008 and incorporated under the "relicensing" terms of the GFDL, version 1.3 or later.