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191 lines
7.4 KiB
HTML
191 lines
7.4 KiB
HTML
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<title>Mathematical Symbols</title>
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<article id="content" role="main">
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<!-- #BeginEditable "Body" -->
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<h1 class="center">Mathematical Symbols</h1>
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<p>Symbols save time and space when writing. Here are the <b>most common</b> mathematical symbols:</p>
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<div class="simple">
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<table align="center" width="92%" cellpadding="3" border="0">
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<tbody>
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<tr style="text-align:center;">
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<th>Symbol</th>
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<th>Meaning</th>
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<th nowrap="nowrap" bgcolor="#FFFFFF">Example</th>
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</tr>
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<tr style="text-align:center;">
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<td class="large" bgcolor="#FFFFCC">+</td>
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<td bgcolor="#FFFFCC"><a href="numbers/addition.html">add</a></td>
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<td nowrap="nowrap">3+7 = 10</td>
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</tr>
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<tr style="text-align:center;">
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<td class="large" bgcolor="#FFFFCC">−</td>
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<td bgcolor="#FFFFCC"><a href="numbers/subtraction.html">subtract</a></td>
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<td nowrap="nowrap">5−2 = 3</td>
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</tr>
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<tr style="text-align:center;">
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<td class="large" bgcolor="#FFFFCC">×</td>
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<td bgcolor="#FFFFCC"><a href="tables.html">multiply</a></td>
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<td nowrap="nowrap">4×3 = 12</td>
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</tr>
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<tr style="text-align:center;">
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<td class="large" bgcolor="#FFFFCC">÷</td>
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<td bgcolor="#FFFFCC"><a href="numbers/division.html">divide</a></td>
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<td nowrap="nowrap">20÷5 = 4</td>
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</tr>
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<tr style="text-align:center;">
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<td class="large" bgcolor="#FFFFCC">/</td>
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<td bgcolor="#FFFFCC">divide</td>
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<td nowrap="nowrap">20/5 = 4</td>
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</tr>
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<tr style="text-align:center;">
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<td class="large" bgcolor="#FFFFCC">( ) </td>
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<td bgcolor="#FFFFCC"><a href="algebra/brackets.html">grouping symbols</a></td>
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<td nowrap="nowrap">2(a−3)</td>
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</tr>
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<tr style="text-align:center;">
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<td class="large" bgcolor="#FFFFCC">[ ]</td>
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<td bgcolor="#FFFFCC"><a href="algebra/brackets.html">grouping symbols</a></td>
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<td nowrap="nowrap">2[ a−3(b+c) ]</td>
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</tr>
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<tr style="text-align:center;">
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<td class="large" bgcolor="#FFFFCC">{ }</td>
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<td bgcolor="#FFFFCC"><a href="sets/sets-introduction.html">set symbols</a></td>
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<td nowrap="nowrap">{1, 2, 3}</td>
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</tr>
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<tr style="text-align:center;">
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<td class="large" bgcolor="#FFFFCC"><span class="times">π</span></td>
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<td bgcolor="#FFFFCC"><a href="numbers/pi.html">pi</a></td>
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<td nowrap="nowrap">A = <span class="times">π</span>r<sup>2</sup></td>
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</tr>
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<tr style="text-align:center;">
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<td class="large" bgcolor="#FFFFCC">∞</td>
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<td bgcolor="#FFFFCC"><a href="numbers/infinity.html">infinity</a></td>
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<td nowrap="nowrap">∞ is endless<span style="font-size: 20px; font-family: serif;"></span></td>
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</tr>
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<tr style="text-align:center;">
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<td class="large" bgcolor="#FFFFCC">=</td>
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<td bgcolor="#FFFFCC">equals</td>
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<td nowrap="nowrap">1+1 = 2</td>
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</tr>
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<tr style="text-align:center;">
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<td bgcolor="#FFFFCC"><img src="images/symbols/symbol-approx-equal.gif" alt="approximately equal symbol" height="25" width="28"></td>
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<td bgcolor="#FFFFCC"><a href="numbers/estimation.html">approximately equal to</a></td>
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<td nowrap="nowrap"><span class="times">π</span> <img src="images/symbols/symbol-approx-equal.gif" alt="approximately equal symbol" align="absmiddle" height="25" width="28">3.14</td>
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</tr>
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<tr style="text-align:center;">
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<td bgcolor="#FFFFCC"><span class="large">≠</span></td>
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<td bgcolor="#FFFFCC">not equal to</td>
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<td nowrap="nowrap"><span class="times">π</span> <span class="large">≠</span> 2</td>
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</tr>
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<tr style="text-align:center;">
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<td class="large" bgcolor="#FFFFCC">< ≤</td>
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<td bgcolor="#FFFFCC"><a href="equal-less-greater.html">less than, less than or equal to</a></td>
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<td nowrap="nowrap">2 < 3</td>
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</tr>
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<tr style="text-align:center;">
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<td class="large" bgcolor="#FFFFCC">> ≥</td>
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<td bgcolor="#FFFFCC"><a href="equal-less-greater.html">greater than, greater than or equal to</a></td>
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<td nowrap="nowrap">5 > 1</td>
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</tr>
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<tr style="text-align:center;">
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<td bgcolor="#FFFFCC"><img src="images/symbols/radical.gif" alt="radical symbol" height="32" width="35"></td>
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<td bgcolor="#FFFFCC"><a href="square-root.html">square root</a> ("radical")</td>
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<td nowrap="nowrap">√4 = 2</td>
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</tr>
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<tr style="text-align:center;">
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<td bgcolor="#FFFFCC">°</td>
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<td bgcolor="#FFFFCC"><a href="geometry/degrees.html">degrees</a></td>
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<td nowrap="nowrap">20°</td>
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</tr>
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<tr style="text-align:center;">
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<td bgcolor="#FFFFCC"><img src="images/symbols/therefore.gif" alt="therefore symbol" height="28" width="28"></td>
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<td bgcolor="#FFFFCC">therefore</td>
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<td nowrap="nowrap"><i>a=b <img src="images/symbols/therefore-sm.gif" alt="therefore" height="15" width="14"> b=a</i></td>
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</tr>
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</tbody></table>
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<p> </p>
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</div>
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<div class="related">
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<a href="geometry/symbols.html">Symbols in Geometry</a>
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<a href="algebra/symbols.html">Symbols in Algebra</a>
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</div>
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Copyright © 2020 MathsIsFun.com
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