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POc++ extracting decimal solution error
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  1. POc++ extracting decimal solution error
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    copied!<p>Simple c++ question, so as you can see it creates a table and inputs variable a and also variable t answer, the problem is I don't know how to fix the <code>if ()</code>. As you can see it has an error(typo). I don't know how to identify if variable t has example: <code>1</code> or <code>1.5</code>, if number have 1.(something here and it's bigger than number.<strong>1</strong>) then call one condition else call other. </p> <pre><code>int a,b = 18; double t; for (a = 0; a &lt;= b; a++) { t = 8 + (double)(18 - a) / 2; if (t &gt;= *.1) cout &lt;&lt; setw(9) &lt;&lt; a &lt;&lt; setw(20) &lt;&lt; fixed &lt;&lt; setprecision(1) &lt;&lt; t &lt;&lt; endl; else cout &lt;&lt; setw(9) &lt;&lt; a &lt;&lt; setw(20) &lt;&lt; t &lt;&lt; endl; } </code></pre> <p>Tried :</p> <pre><code>#include &lt;iostream&gt; #include &lt;iomanip&gt; #include &lt;cmath&gt; #include &lt;math.h&gt; using namespace std; int main () { int a,b = 18; double t; for (a = 0; a &lt;= b; a++) { t = 8 + (double)(18 - a) / 2; if (modf(t, NULL) &gt;= 0.1) cout &lt;&lt; setw(9) &lt;&lt; a &lt;&lt; setw(20) &lt;&lt; fixed &lt;&lt; setprecision(1) &lt;&lt; t &lt;&lt; endl; else cout &lt;&lt; setw(9) &lt;&lt; a &lt;&lt; setw(20) &lt;&lt; t &lt;&lt; endl; } } </code></pre> <p>Fixed in my own way, still thanks 'Angew' he was the first to post modf():</p> <pre><code>#include &lt;iostream&gt; #include &lt;iomanip&gt; #include &lt;cmath&gt; #include &lt;math.h&gt; using namespace std; int main () { int a,b = 18; double t,z; int k; for (a = 1; a &lt;= b; a++) { t = 8 + (double)(18 - a) / 2; if (modf(t, &amp;z) &gt;= 0.5) cout &lt;&lt; setw(9) &lt;&lt; a &lt;&lt; setw(20) &lt;&lt; fixed &lt;&lt; setprecision(1) &lt;&lt; t &lt;&lt; endl; else k = t; cout &lt;&lt; setw(9) &lt;&lt; a &lt;&lt; setw(20) &lt;&lt; k &lt;&lt; endl; } } </code></pre>
 

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