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<a name="heading_rnd"></a>Rnd Function</h1>
<p id="par_id3149669" class="paragraph" dir="auto">Returns a random number between 0 and 1.</p>
<h2 id="hd_id3153897" dir="auto">Syntax:</h2>
<div class="bascode" itemscope="true" itemtype="http://schema.org/SoftwareSourceCode" itemprop="codeSampleType" content="snippet" data-tooltip="Click on text to copy to clipboard"><pre dir="auto"><code class="language-visual-basic line-numbers">
Rnd [(Expression)]
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<h2 id="hd_id3149655" dir="auto">Return value:</h2>
<p id="par_id3154365" class="paragraph" dir="auto">Double</p>
<h2 id="hd_id3154909" dir="auto">Parameters:</h2>
<p id="par_id3125864" class="paragraph" dir="auto"> <span class="emph">Expression:</span> Has no effect, is ignored if provided.</p>
<p id="par_id3147318" class="paragraph" dir="auto">The <span class="emph">Rnd</span> function returns decimal fractions ranging from 0 (included) to 1 (excluded) according to a uniform distribution. It uses the Mersenne Twister 19937 random-number generator. To generate random integers in a given range, use a formula like in the example below. A <span class="emph">Randomize</span> statement with a defined seed value can be used beforehand, if a predictable sequence of numbers is desired.</p>
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<h3 id="hd_id3152869" dir="auto">Error codes:</h3>
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<div class="embedded"><p class="embedded" dir="auto">5 Invalid procedure call</p></div>
<h2 id="hd_id3151118" dir="auto">Example:</h2>
<div class="bascode" itemscope="true" itemtype="http://schema.org/SoftwareSourceCode" itemprop="codeSampleType" content="snippet" data-tooltip="Click on text to copy to clipboard"><pre dir="auto"><code class="language-visual-basic line-numbers">
Sub ExampleRandomSelect
Dim iVar As Integer
iVar = Int((15 * Rnd) -2)
Select Case iVar
Case 1 To 5
Print "Number from 1 to 5"
Case 6, 7, 8
Print "Number from 6 to 8"
Case Is > 8 And iVar < 11
Print "Greater than 8"
Case Else
Print "Outside range 1 to 10"
End Select
End Sub
</code></pre></div>
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<p id="par_id110520162210036951" class="paragraph" dir="auto"><a target="_top" href="en-US/text/sbasic/shared/03080301.html">Randomize Statement</a></p>
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