* Arithmetica Universalis* ("Universal Arithmetic") is a mathematics text by Isaac Newton. Written in Latin, it was edited and published by William Whiston, Newton's successor as Lucasian Professor of Mathematics at the University of Cambridge. The

Whiston's original edition was published in 1707. It was translated into English by Joseph Raphson, who published it in 1720 as the *Universal Arithmetick*. John Machin published a second Latin edition in 1722.

None of these editions credit Newton as author; Newton was unhappy with the publication of the *Arithmetica*, and so refused to have his name appear. In fact, when Whiston's edition was published, Newton was so upset he considered purchasing all of the copies so he could destroy them.

The *Arithmetica* touches on algebraic notation, arithmetic, the relationship between geometry and algebra, and the solution of equations. Newton also applied Descartes' rule of signs to imaginary roots. He also offered, without proof, a rule to determine the number of imaginary roots of polynomial equations. A rigorous proof of Newton's counting formula for equations up to and including the fifth degree was published by James Joseph Sylvester in 1864.^{[1]}

**^**Sylvester, J.J. (6 April 1864). "Algebraical Researches, containing a disquisition on Newton's Rule for the Discovery of Imaginary Roots, and an allied Rule applicable to a particular class of Equations, together with a complete invariantive determination of the character of the Roots of the General Equation of the fifth Degree, &c".*Philosophical Transactions of the Royal Society*.**154**: 580–591. Retrieved 29 October 2023.

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*Arithmetica Universalis*from the Grace K. Babson Collection, including links to PDFs of English and Latin versions of the*Arithmetica* - Centre College Library information on Newton's works

*Arithmetica Universalis*(1707), first edition*Universal Arithmetick*(1720), English translation by Joseph Raphson*Arithmetica Universalis*(1722), second edition

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