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<FONT SIZE=1 COLOR=#660033>Microsoft® Visual Basic® Scripting Edition</FONT><BR>
<FONT SIZE=5 COLOR=#660033><B>Rnd Function</B></FONT>
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<FONT SIZE=2> <A HREF="vbstoc.htm">Language Reference</A> <BR>
<A HREF="vbs16.htm">Version 1</A> <P></FONT>
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<A HREF="vbs176.htm">See Also</A></FONT>
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<H5>Description</H5>
<BLOCKQUOTE>Returns a random number.</BLOCKQUOTE>
<H5>Syntax</H5>
<BLOCKQUOTE><b>Rnd</b>[<b>(</b><i>number</i><b>)</b>]<P>
The <i>number</i> argument can be any valid
<A HREF="vbs0.htm#defNumericExpression">numeric expression</A>.</BLOCKQUOTE>
<H5>Remarks</H5>
<BLOCKQUOTE>The <b>Rnd</b> function returns a value less than 1 but greater than or equal to 0.<P>
The value of <i>number</i> determines how <b>Rnd</b> generates a random number:<P>
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<TD><FONT SIZE=2><b>If <i>number</i> is</b></FONT></TD>
<TD><FONT SIZE=2><b>Rnd generates</b></FONT></TD></TR>
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<TD><FONT SIZE=2>Less than zero</FONT></TD>
<TD><FONT SIZE=2>The same number every time, using <i>number</i> as the
<A HREF="vbs0.htm#defSeed">seed</A>.</FONT></TD></TR>
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<TD><FONT SIZE=2>Greater than zero</FONT></TD>
<TD><FONT SIZE=2>The next random number in the sequence.</FONT></TD></TR>
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<TD><FONT SIZE=2>Equal to zero</FONT></TD>
<TD><FONT SIZE=2>The most recently generated number.</FONT></TD></TR>
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<TD><FONT SIZE=2>Not supplied</FONT></TD>
<TD><FONT SIZE=2>The next random number in the sequence.</FONT></TD></TR></TABLE><P>
For any given initial seed, the same number sequence is generated because each successive call to the <b>Rnd</b> function uses the previous number as a seed for the next number in the sequence.<P>
Before calling <b>Rnd</b>, use the <b>Randomize</b> statement without an argument to initialize the random-number generator with a seed based on the system timer.<P>
To produce random integers in a given range, use this formula:<P>
<BLOCKQUOTE><PRE><FONT FACE="Courier New" SIZE=3>Int((<i>upperbound</i> - <i>lowerbound</i> + 1) * <FONT COLOR=#FF0000>Rnd</FONT> + <i>lowerbound</i>)
</FONT></PRE>
</BLOCKQUOTE>
Here, <i>upperbound</i> is the highest number in the range, and <i>lowerbound</i> is the lowest number in the range.
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<TD VALIGN=TOP><FONT SIZE=2><b>Note</b> To repeat sequences of random numbers, call <b>Rnd</b> with a negative argument immediately before using <b>Randomize</b> with a numeric argument. Using <b>Randomize</b> with the same value for <i>number</i> does not repeat the previous sequence.</FONT></TD></TR>
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<p align=center><em><a href="../../common/colegal.htm">© 1997 by Microsoft Corporation. All rights reserved.</a></em></p>
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