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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.util</a></div>
<h2 title="Class NumberUtil" class="title">Class NumberUtil</h2>
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<pre>public class <span class="typeNameLabel">NumberUtil</span>
extends <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></pre>
<div class="block">Utility functions for working with numbers.</div>
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<h3>Method Summary</h3>
<table class="memberSummary">
<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
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<tr id="i0" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#add(java.lang.Double,java.lang.Double)">add</a></span>&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;a,
<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;b)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/9/docs/api/java/text/DecimalFormat.html?is-external=true" title="class or interface in java.text" class="externalLink">DecimalFormat</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#decimalFormat(java.lang.String)">decimalFormat</a></span>&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;pattern)</code></th>
<td class="colLast">
<div class="block">Creates a format.</div>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#divide(java.lang.Double,java.lang.Double)">divide</a></span>&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;a,
<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;b)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/9/docs/api/java/text/NumberFormat.html?is-external=true" title="class or interface in java.text" class="externalLink">NumberFormat</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getApproxFormatter(boolean)">getApproxFormatter</a></span>&#8203;(boolean&nbsp;isFloat)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigInteger.html?is-external=true" title="class or interface in java.math" class="externalLink">BigInteger</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMaxUnscaled(int)">getMaxUnscaled</a></span>&#8203;(int&nbsp;precision)</code></th>
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<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigInteger.html?is-external=true" title="class or interface in java.math" class="externalLink">BigInteger</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMinUnscaled(int)">getMinUnscaled</a></span>&#8203;(int&nbsp;precision)</code></th>
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<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isValidDecimal(java.math.BigDecimal)">isValidDecimal</a></span>&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math" class="externalLink">BigDecimal</a>&nbsp;bd)</code></th>
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<div class="block">Returns whether a <a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math" class="externalLink"><code>BigDecimal</code></a> is a valid Farrago decimal.</div>
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<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#min(java.lang.Double,java.lang.Double)">min</a></span>&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;a,
<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;b)</code></th>
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<div class="block">Like <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Math.html?is-external=true#min(int,int)" title="class or interface in java.lang" class="externalLink"><code>Math.min(int, int)</code></a> but null safe.</div>
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<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#multiply(java.lang.Double,java.lang.Double)">multiply</a></span>&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;a,
<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;b)</code></th>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigInteger.html?is-external=true" title="class or interface in java.math" class="externalLink">BigInteger</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#powTen(int)">powTen</a></span>&#8203;(int&nbsp;exponent)</code></th>
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<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math" class="externalLink">BigDecimal</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#rescaleBigDecimal(java.math.BigDecimal,int)">rescaleBigDecimal</a></span>&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math" class="externalLink">BigDecimal</a>&nbsp;bd,
int&nbsp;scale)</code></th>
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<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#round(double)">round</a></span>&#8203;(double&nbsp;d)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i12" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math" class="externalLink">BigDecimal</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toBigDecimal(java.lang.Number)">toBigDecimal</a></span>&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Number.html?is-external=true" title="class or interface in java.lang" class="externalLink">Number</a>&nbsp;number)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i13" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math" class="externalLink">BigDecimal</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toBigDecimal(java.lang.Number,int)">toBigDecimal</a></span>&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Number.html?is-external=true" title="class or interface in java.lang" class="externalLink">Number</a>&nbsp;number,
int&nbsp;scale)</code></th>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink">hashCode</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink">toString</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></li>
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<h4>decimalFormat</h4>
<pre class="methodSignature">public static&nbsp;<a href="https://docs.oracle.com/javase/9/docs/api/java/text/DecimalFormat.html?is-external=true" title="class or interface in java.text" class="externalLink">DecimalFormat</a>&nbsp;decimalFormat&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;pattern)</pre>
<div class="block">Creates a format. Locale-independent.</div>
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<pre class="methodSignature">public static&nbsp;<a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigInteger.html?is-external=true" title="class or interface in java.math" class="externalLink">BigInteger</a>&nbsp;powTen&#8203;(int&nbsp;exponent)</pre>
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<pre class="methodSignature">public static&nbsp;<a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigInteger.html?is-external=true" title="class or interface in java.math" class="externalLink">BigInteger</a>&nbsp;getMaxUnscaled&#8203;(int&nbsp;precision)</pre>
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<pre class="methodSignature">public static&nbsp;<a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigInteger.html?is-external=true" title="class or interface in java.math" class="externalLink">BigInteger</a>&nbsp;getMinUnscaled&#8203;(int&nbsp;precision)</pre>
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<pre class="methodSignature">public static&nbsp;<a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math" class="externalLink">BigDecimal</a>&nbsp;rescaleBigDecimal&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math" class="externalLink">BigDecimal</a>&nbsp;bd,
int&nbsp;scale)</pre>
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<pre class="methodSignature">public static&nbsp;<a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math" class="externalLink">BigDecimal</a>&nbsp;toBigDecimal&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Number.html?is-external=true" title="class or interface in java.lang" class="externalLink">Number</a>&nbsp;number,
int&nbsp;scale)</pre>
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<pre class="methodSignature">public static&nbsp;<a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math" class="externalLink">BigDecimal</a>&nbsp;toBigDecimal&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Number.html?is-external=true" title="class or interface in java.lang" class="externalLink">Number</a>&nbsp;number)</pre>
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<pre class="methodSignature">public static&nbsp;boolean&nbsp;isValidDecimal&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math" class="externalLink">BigDecimal</a>&nbsp;bd)</pre>
<div class="block">Returns whether a <a href="https://docs.oracle.com/javase/9/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math" class="externalLink"><code>BigDecimal</code></a> is a valid Farrago decimal. If a
BigDecimal's unscaled value overflows a long, then it is not a valid
Farrago decimal.</div>
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<pre class="methodSignature">public static&nbsp;<a href="https://docs.oracle.com/javase/9/docs/api/java/text/NumberFormat.html?is-external=true" title="class or interface in java.text" class="externalLink">NumberFormat</a>&nbsp;getApproxFormatter&#8203;(boolean&nbsp;isFloat)</pre>
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<pre class="methodSignature">public static&nbsp;long&nbsp;round&#8203;(double&nbsp;d)</pre>
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<pre class="methodSignature">public static&nbsp;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;add&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;a,
<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;b)</pre>
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<pre class="methodSignature">public static&nbsp;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;divide&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;a,
<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;b)</pre>
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<pre class="methodSignature">public static&nbsp;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;multiply&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;a,
<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;b)</pre>
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<pre class="methodSignature">public static&nbsp;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;min&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;a,
<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&nbsp;b)</pre>
<div class="block">Like <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Math.html?is-external=true#min(int,int)" title="class or interface in java.lang" class="externalLink"><code>Math.min(int, int)</code></a> but null safe.</div>
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