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/* atof example: sine calculator */
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main ()
{
double n,m;
double pi=3.1415926535;
char szInput [256];
printf ( "Enter degrees: " );
gets ( szInput );
n = atof ( szInput );
m = sin (n*pi/180);
printf ( "The sine of %f degrees is %f\n" , n, m );
return 0;
}
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