sub norm{
my $v1,$v2,$r;
if( defined $v2 ){
$v1 = $v2;
undef $v2;
}else{
do{
$v1=rand(2)-1;
$v2=rand(2)-1;
$r = $v1*$v1+$v2*$v2;
}while( $r >= 1 || $r == 0 );
$r = sqrt(-2*(log $r)/$r);
$v1 *= $r;
$v2 *= $r;
}
return $v1;
}
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|