Harriot, Thomas, Mss. 6782

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                <emph style="bf">Commentary:</emph>
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              <s xml:space="preserve"> On this page Harriot works with the multiplication from Add MS
                <ref target="http://echo.mpiwg-berlin.mpg.de/ECHOdocuView?url=/permanent/library/HSPGZ0AE&start=640&viewMode=image&pn=644"> f. </ref>
                <ref target="http://echo.mpiwg-berlin.mpg.de/ECHOdocuView?url=/permanent/library/HSPGZ0AE&start=640&viewMode=image&pn=646"> f. </ref>
              , namely,
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                    <mo>-</mo>
                    <mi>c</mi>
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              , but now with the signs changed so that it becomes
                <math>
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                    <mi>b</mi>
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              . As in Add MS 6782
                <ref target="http://echo.mpiwg-berlin.mpg.de/ECHOdocuView?url=/permanent/library/HSPGZ0AE&start=640&viewMode=image&pn=646"> f. </ref>
              , he gives the special form of the equation that arises when
                <math>
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              , when the term in
                <math>
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              vanishes. For a full derivation see Add MS 6783
                <ref target="http://echo.mpiwg-berlin.mpg.de/ECHOdocuView?url=/permanent/library/VWXURW4V&start=350&viewMode=image&pn=359"> F. </ref>
              (d.4). </s>
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          [
            <emph style="bf">Translation: </emph>
          Changes of ]</head>
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