Math.h header file

 

#include<stdio.h>

#include<math.h>

int main()

{

    double a=sin(1.5);

    printf("%lf\n",sin(1.5));

    printf("%lf\n",cos(1.5));

    printf("%lf\n",tan(1.5));

    //..................

printf("%lf\n",exp(1));

printf("%lf\n",log(1));

printf("%lf\n",log10(100));

printf("%lf\n",pow(4,2));

printf("%lf\n",sqrt(4));

printf("%lf\n",fmod(4.1,5));

//.................

printf("%lf\n",fabs(-4));

printf("%ld\n",labs(-42));

printf("%lf\n",floor(4.6));

printf("%lf\n",ceil(4.2));

    return 0;

}