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Mark McGranaghan 2015-09-05 10:19:48 -07:00
parent 7dde60ce97
commit 93e2f08a6b
2 changed files with 9 additions and 4 deletions
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4
examples/random-numbers/random-numbers.hash
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@ -1,2 +1,2 @@
6ce1f98d3c22ee8bf02c41b393361d6cd5fff23a
TZElZIwNU1
8e97de760147b061dd09939db294c892211b6b80
ZdFpbahgC1

9
public/random-numbers
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@ -41,7 +41,7 @@ generation.</p>
</td>
<td class="code leading">
<a href="http://play.golang.org/p/TZElZIwNU1"><img title="Run code" src="play.png" class="run" /></a>
<a href="http://play.golang.org/p/ZdFpbahgC1"><img title="Run code" src="play.png" class="run" /></a>
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
</pre></div>
@ -124,7 +124,7 @@ other ranges, for example <code>5.0 &lt;= f' &lt; 10.0</code>.</p>
<td class="docs">
<p>The default number generator is deterministic, so it&rsquo;ll
produce the same sequence of numbers each time by default.
To make it non-deterministic, give it a seed that changes.
To produce varying sequences, give it a seed that changes.
Note that this is not safe to use for random numbers you
intend to be secret, use <code>crypto/rand</code> for those.</p>
@ -167,6 +167,10 @@ produces the same sequence of random numbers.</p>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="nx">r2</span><span class="p">.</span><span class="nx">Intn</span><span class="p">(</span><span class="mi">100</span><span class="p">),</span> <span class="s">&quot;,&quot;</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="nx">r2</span><span class="p">.</span><span class="nx">Intn</span><span class="p">(</span><span class="mi">100</span><span class="p">))</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">()</span>
<span class="nx">s3</span> <span class="o">:=</span> <span class="nx">rand</span><span class="p">.</span><span class="nx">NewSource</span><span class="p">(</span><span class="mi">42</span><span class="p">)</span>
<span class="nx">r3</span> <span class="o">:=</span> <span class="nx">rand</span><span class="p">.</span><span class="nx">New</span><span class="p">(</span><span class="nx">s3</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="nx">r3</span><span class="p">.</span><span class="nx">Intn</span><span class="p">(</span><span class="mi">100</span><span class="p">),</span> <span class="s">&quot;,&quot;</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="nx">r3</span><span class="p">.</span><span class="nx">Intn</span><span class="p">(</span><span class="mi">100</span><span class="p">))</span>
<span class="p">}</span>
</pre></div>
@ -187,6 +191,7 @@ produces the same sequence of random numbers.</p>
<span class="go">81,87</span>
<span class="go">0.6645600532184904</span>
<span class="go">7.123187485356329,8.434115364335547</span>
<span class="go">0,28</span>
<span class="go">5,87</span>
<span class="go">5,87</span>
</pre></div>