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6-18-1558

Robert Recorde's will admitted to probate, after he died in King's Bench Prison in Southwark, England. He introduced the equals sign in The Whetstone of Witte (1557). More information about: Robert Recorde

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RT @fermatslibrary: All the following symbols and notations were introduced by Leohard Euler https://t.co/pQXVSsS3Ix
2018-06-13T12:22:15Z
RT @TXSTMathCATS: Start your Summer I math class off on the right foot. Math CATS opens at 8 am, June 4. #MathCATS #txst https://t.co/OxD…
2018-05-30T15:49:14Z