File:Recorde - The Whetstone of Witte - equals.jpg

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Summary

Description
English: Robert Recorde's explanation of the first usage of the mathematical equals sign from which the current "=" symbol origins.
Čeština: Vysvětlení Roberta Recorde prvního použití matematického symbolu rovnosti, ze kterého vychází dnešní znak "=".
Date
Source http://blog.plover.com/math/recorde.html - The image is an excerpt from the Recorde's book The Whetstone of Witte.
Author Robert Recorde

The text in the scanned image transcription

Howbeit, for easie alteratiõ of equations. I will propounde a fewe exãples, bicause the extraction of their rootes, maie the more aptly bee wroughte. And to auoide the tediouse repetition of these woordes : is equalle to : I will sette as I doe often in woorke vse, a paire of paralleles, or Gemowe lines of one lengthe, thus: =====, bicause noe .2. thynges, can be moare equalle. And now marke these nombers.

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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Recorde_-_The_Whetstone_of_Witte_-_equals.jpg

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Date/TimeThumbnailDimensionsUserComment
current17:57, 19 May 2014Thumbnail for version as of 17:57, 19 May 2014490 × 194 (75 KB)Sad EdgarCentered.
10:12, 30 October 2008Thumbnail for version as of 10:12, 30 October 2008485 × 184 (37 KB)Pabouklosslessly cropped
09:34, 7 October 2008Thumbnail for version as of 09:34, 7 October 2008501 × 189 (37 KB)Pabouk{{Information |Description={{en|1=Explanation of the first usage of the mathematical equals sign from which the current "=" symbol origins.}} {{cs|1=Vysvětlení prvního použití matematického symbolu rovnosti ze kterého vychází dnešní znak "=".}}
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