#include <math.h>
#include <stdio.h>
int main()
{
printf(<q>The cosine of %f is %f.\n</q>,0.5,cos(0.5));
printf(<q>The cosine of %f is %f.\n</q>,1.0,cos(1.0));
printf(<q>The cosine of %f is %f.\n</q>,-1.0,cos(-1.0));
return 0;
}
}

Output:
=======
The cosine of 0.5
1