Harriot, Thomas, Mss. 6783
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              <s xml:space="preserve">[
                <emph style="bf">Commentary:</emph>
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            <p>
              <s xml:space="preserve"> The examples of addition are continued from those on the first page (Add MS
                <ref target="http://echo.mpiwg-berlin.mpg.de/ECHOdocuView?url=/permanent/library/VWXURW4V&start=0&viewMode=image&pn=1"> f. </ref>
              ).
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              The examples are followed by some notes on plane, solid, and plano-plane numbers; Harriot's notation from the earlier working has been inserted into the translation at the relevant places.</s>
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            [
              <emph style="bf">Translation: </emph>
            ]</s>
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          <p xml:lang="lat">
            <s xml:space="preserve"> Si duo numeri sint similes plani; factus ex illis est quadratus,
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            cuius radix est medium proportionalis, inter
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            [
              <emph style="bf">Translation: </emph>
            If two numbers [bcdd, bcff] are similar planes, their product is a square whose root [bcdf] is the mean proportional between the given numbers. </s>
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            <s xml:space="preserve"> Si similes plani dividantur per maximum communem divisor,
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            quoti sunt
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            [
              <emph style="bf">Translation: </emph>
            If similar plane numbers [bcdd, bcff] are divided by their greatest common divisor, the quotients are squares.</s>
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          <p xml:lang="lat">
            <s xml:space="preserve"> Si duo numeri sint similes solidi; factus e quadrato unius per alterum,
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            est cubus; cuius radix est una medium
              <emph style="st">videlicet</emph>
              <emph style="super">inter datos</emph>
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            et proxima ad illum numerum qui factus fuit
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            [
              <emph style="bf">Translation: </emph>
            If two numbers [bcdfff, bcdggg] are similar solids, the product of the square of one with the other is a cube, whose root [bcdffg] is one mean proportional beteen the two given numbers, and nearest to that number that was made a square. </s>
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            <s xml:space="preserve"> Si similes solidi dividantur per maximum communem divisor,
              <lb/>
            quoti sunt
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            [
              <emph style="bf">Translation: </emph>
            If similar solid numbers [bcdfff, bcdggg] are divided by their greatest common divisor, the quotients are cubes.</s>
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          <p xml:lang="lat">
            <s xml:space="preserve"> Si duo numeri sint similes planoplani; factus e cubo primi
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            per secundum est primum quadrato-quadratum cuius radix est primum
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            medium proportionalis, inter
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            [
              <emph style="bf">Translation: </emph>
            If two numbers are similar plano-planes [bcdfgggg, bcdfhhhh], the product of the cube of the first with the second is a square-square, whose side [bcdfgggh] is the first mean proportional between the given ]</s>
            <lb/>
            <s xml:space="preserve"> Si similes plano-plani dividantur per maximum communem divisor,
              <lb/>
            quoti sunt
              <lb/>
            [
              <emph style="bf">Translation: </emph>
            If similar plano-plane numbers [bcdfgggg, bcdfhhhh] are divided by their greatest commmon divisor, the quotients are square-squares.</s>
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