20 new mathematical symbols and there use ,origin and meaning
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+plus signca. 1360 (abbreviation for Latin et resembling the plus sign)Nicole Oresme−minus sign1489 (first appearance of minus sign, and also first appearance of plus sign in print)Johannes Widmann√radical symbol (for square root)1525 (without the vinculum above the radicand)Christoff Rudolff(…)parentheses (for precedence grouping)1544 (in handwritten notes)Michael Stifel1556Niccolò Tartaglia=equals sign1557Robert Recorde×multiplication sign1618William Oughtred±plus-minus sign1628∷proportion signn√
radical symbol (for nth root)1629Albert Girard<
>strict inequality signs (less-than sign and greater-than sign)1631Thomas Harriotxy
superscript notation (for exponentiation)1636 (using Roman numerals as superscripts)James Hume1637 (in the modern form)René Descartes√ ̅radical symbol (for square root)1637 (with the vinculum above the radicand)René Descartes%percent signca. 1650unknown÷division sign (a.k.a. obelus)1659Johann Rahn∞infinity sign1655John Wallis≤
≥unstrict inequality signs (less-than or equals to sign and greater-than or equals to sign)1670 (with the horizontal bar over the inequality sign, rather than below it)1734 (with double horizontal bar below the inequality sign)Pierre Bouguerddifferential sign1675Gottfried Leibniz∫integral sign:colon (for division)1684 (deriving from use of colon to denote fractions, dating back to 1633)
HOPE THIS HELPS.
+plus signca. 1360 (abbreviation for Latin et resembling the plus sign)Nicole Oresme−minus sign1489 (first appearance of minus sign, and also first appearance of plus sign in print)Johannes Widmann√radical symbol (for square root)1525 (without the vinculum above the radicand)Christoff Rudolff(…)parentheses (for precedence grouping)1544 (in handwritten notes)Michael Stifel1556Niccolò Tartaglia=equals sign1557Robert Recorde×multiplication sign1618William Oughtred±plus-minus sign1628∷proportion signn√
radical symbol (for nth root)1629Albert Girard<
>strict inequality signs (less-than sign and greater-than sign)1631Thomas Harriotxy
superscript notation (for exponentiation)1636 (using Roman numerals as superscripts)James Hume1637 (in the modern form)René Descartes√ ̅radical symbol (for square root)1637 (with the vinculum above the radicand)René Descartes%percent signca. 1650unknown÷division sign (a.k.a. obelus)1659Johann Rahn∞infinity sign1655John Wallis≤
≥unstrict inequality signs (less-than or equals to sign and greater-than or equals to sign)1670 (with the horizontal bar over the inequality sign, rather than below it)1734 (with double horizontal bar below the inequality sign)Pierre Bouguerddifferential sign1675Gottfried Leibniz∫integral sign:colon (for division)1684 (deriving from use of colon to denote fractions, dating back to 1633)
HOPE THIS HELPS.
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