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	<id>https://gradwiki.math.ucr.edu/index.php?action=history&amp;feed=atom&amp;title=Origins_of_Two_Familiar_Math_Terms</id>
	<title>Origins of Two Familiar Math Terms - Revision history</title>
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	<updated>2026-04-20T20:21:58Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://gradwiki.math.ucr.edu/index.php?title=Origins_of_Two_Familiar_Math_Terms&amp;diff=267&amp;oldid=prev</id>
		<title>Josh Strong at 19:28, 30 March 2015</title>
		<link rel="alternate" type="text/html" href="https://gradwiki.math.ucr.edu/index.php?title=Origins_of_Two_Familiar_Math_Terms&amp;diff=267&amp;oldid=prev"/>
		<updated>2015-03-30T19:28:08Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 19:28, 30 March 2015&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In the 800's the mathematician Abu Ja'far Muhammad ibn Musa al-Khwarizmi wrote, among other works, two books on the subjects of arithmetic and algebra.  In the book, ''Concerning the Hindu Art of Reckoning'', al-Khwarizmi used the Hindu numeral system.  However, European readers inaccurately consider the number system as Arabic numerals.  The use of Hindu numerals became known as '''algorithm''', derived from the name al-Khwarizmi.  Today, the word algorithm is used for any process or procedure.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In the 800's the mathematician Abu Ja'far Muhammad ibn Musa al-Khwarizmi wrote, among other works, two books on the subjects of arithmetic and algebra.  In the book, ''Concerning the Hindu Art of Reckoning'', al-Khwarizmi used the Hindu numeral system.  However, European readers inaccurately consider the number system as Arabic numerals.  The use of Hindu numerals became known as '''algorithm''', derived from the name al-Khwarizmi.  Today, the word algorithm is used for any process or procedure.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Al-Khwarizmi's other book, ''The &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Compendoius &lt;/del&gt;Book on Calculation by Completion and Balancing'', contained a method known as '''al-jabr'''. This is the method of removing negative amounts from an equation by adding that amount to each side.  That is, for &amp;lt;math style=&amp;quot;vertical-align:&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;0&lt;/del&gt;%&amp;quot;&amp;gt;x^2 = x- 2x^2&amp;lt;/math&amp;gt; one would apply al-jabr by adding &amp;lt;math style=&amp;quot;vertical-align:&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;0&lt;/del&gt;%&amp;quot;&amp;gt;2x^2&amp;lt;/math&amp;gt; to both sides to get &amp;lt;math style=&amp;quot;vertical-align:&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;0&lt;/del&gt;%&amp;quot;&amp;gt;3x^2 = x&amp;lt;/math&amp;gt;.  The term '''algebra''' is derived from the word al-jabr.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Al-Khwarizmi's other book, ''The &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Compendious &lt;/ins&gt;Book on Calculation by Completion and Balancing'', contained a method known as '''al-jabr'''. This is the method of removing negative amounts from an equation by adding that amount to each side.  That is, for &amp;lt;math style=&amp;quot;vertical-align:&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;-5&lt;/ins&gt;%&amp;quot;&amp;gt;x^2 = x- 2x^2&amp;lt;/math&amp;gt; one would apply al-jabr by adding &amp;lt;math style=&amp;quot;vertical-align:&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;-5&lt;/ins&gt;%&amp;quot;&amp;gt;2x^2&amp;lt;/math&amp;gt; to both sides to get &amp;lt;math style=&amp;quot;vertical-align:&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;-5&lt;/ins&gt;%&amp;quot;&amp;gt;3x^2 = x&amp;lt;/math&amp;gt;.  The term '''algebra''' is derived from the word al-jabr.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Josh Strong</name></author>
	</entry>
	<entry>
		<id>https://gradwiki.math.ucr.edu/index.php?title=Origins_of_Two_Familiar_Math_Terms&amp;diff=266&amp;oldid=prev</id>
		<title>Josh Strong: Created page with &quot;In the 800's the mathematician Abu Ja'far Muhammad ibn Musa al-Khwarizmi wrote, among other works, two books on the subjects of arithmetic and algebra.  In the book, ''Concern...&quot;</title>
		<link rel="alternate" type="text/html" href="https://gradwiki.math.ucr.edu/index.php?title=Origins_of_Two_Familiar_Math_Terms&amp;diff=266&amp;oldid=prev"/>
		<updated>2015-03-30T19:04:10Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;In the 800&amp;#039;s the mathematician Abu Ja&amp;#039;far Muhammad ibn Musa al-Khwarizmi wrote, among other works, two books on the subjects of arithmetic and algebra.  In the book, &amp;#039;&amp;#039;Concern...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;In the 800's the mathematician Abu Ja'far Muhammad ibn Musa al-Khwarizmi wrote, among other works, two books on the subjects of arithmetic and algebra.  In the book, ''Concerning the Hindu Art of Reckoning'', al-Khwarizmi used the Hindu numeral system.  However, European readers inaccurately consider the number system as Arabic numerals.  The use of Hindu numerals became known as '''algorithm''', derived from the name al-Khwarizmi.  Today, the word algorithm is used for any process or procedure.&lt;br /&gt;
&lt;br /&gt;
Al-Khwarizmi's other book, ''The Compendoius Book on Calculation by Completion and Balancing'', contained a method known as '''al-jabr'''. This is the method of removing negative amounts from an equation by adding that amount to each side.  That is, for &amp;lt;math style=&amp;quot;vertical-align:0%&amp;quot;&amp;gt;x^2 = x- 2x^2&amp;lt;/math&amp;gt; one would apply al-jabr by adding &amp;lt;math style=&amp;quot;vertical-align:0%&amp;quot;&amp;gt;2x^2&amp;lt;/math&amp;gt; to both sides to get &amp;lt;math style=&amp;quot;vertical-align:0%&amp;quot;&amp;gt;3x^2 = x&amp;lt;/math&amp;gt;.  The term '''algebra''' is derived from the word al-jabr.&lt;/div&gt;</summary>
		<author><name>Josh Strong</name></author>
	</entry>
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