в 14:21, 25 мая 2010

2010-05-25T14:21:19Z

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2010-05-25T10:32:36Z

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==For floating arguments, precision indicates how many digits are printed after decimal points.==

<source lang="cpp">#include <stdio.h>
main()
{
printf("%10.4e\n", 35.99999);
}</source>
<pre class=codeResult>3.6000e+01</pre>

==Precision==

<p>Precision indicates the minimum number of digits printed for type integers d, i, o, u, x, and X.</p>

<source lang="cpp">#include <stdio.h>
main()
{
printf("%10.4d\n", 35);
}</source>
<pre class=codeResult>0035</pre>
<OL><LI>10 is the field-width.</LI><LI>4 is the precision.</LI></OL>

==Using precision while printing integers, floating-point numbers, and strings==

<source lang="cpp">#include <stdio.h>
int main()
{
int i = 873;
double f = 123.94536;
char s[] = "Happy Birthday";
printf( "Using precision for integers\n" );
printf( "\t%.4d\n\t%.9d\n\n", i, i );
printf( "Using precision for floating-point numbers\n" );
printf( "\t%.3f\n\t%.3e\n\t%.3g\n\n", f, f, f );

printf( "Using precision for strings\n" );
printf( "\t%.11s\n", s );
return 0;
}</source>
<pre class=codeResult>Using precision for integers
0873
000000873
Using precision for floating-point numbers
123.945
1.239e+02
124
Using precision for strings
Happy Birth</pre>

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в 14:21, 25 мая 2010

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