Setprecision is Confusing
<p>I just want to ask about setprecision because I'm a bit confused. </p>

<p>here's the code:</p>

<pre><code>#include &lt;iostream&gt;
#include &lt;iomanip&gt;
using namespace std;

int main()

{
  double rate = x;
  cout &lt;&lt; fixed &lt;&lt; setprecision(2) &lt;&lt; rate;
}
</code></pre>

<p>where x = to following:</p>

<p>the left side of equation are the values of x.</p>

<p>1.105 = 1.10 should be 1.11</p>

<p>1.115 = 1.11 should be 1.12</p>

<p>1.125 = 1.12 should be 1.13</p>

<p>1.135 = 1.14 which is correct</p>

<p>1.145 = 1.15 also correct </p>

<p>but if x is:</p>

<p>2.115 = 2.12 which is correct</p>

<p>2.125 = 2.12 should be 2.13</p>

<p>so why in a certain value it's correct but sometimes it's wrong?</p>

<p>please enlighten me. thanks</p>
