# Book:Robert Recorde/The Whetstone of Witte, whiche is the seconde parte of Arithmeteke: containing the extraction of rootes; the cossike practise, with the rule of equation; and the workes of Surde Nombers

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## Contents

## Robert Recorde: *The Whetstone of Witte, whiche is the seconde parte of Arithmeteke: containing the extraction of rootes; the cossike practise, with the rule of equation; and the workes of Surde Nombers*

Published $\text {1557}$.

### Subject Matter

in which can be found:

- a description of the cossist practice
- the first appearance in print of the equals sign
- the word zenzizenzizenzic.

### Contents

A table of contents is missing for this source work. You can help $\mathsf{Pr} \infty \mathsf{fWiki}$ by adding the table of contents. (discuss) |

## Sources

- 2008: Ian Stewart:
*Taming the Infinite*... (previous) ... (next): Chapter $4$: Lure of the Unknown: Algebraic symbolism