#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main(void)
{
    double a;
    double b;

    printf("a und b eingeben : ");
    scanf("%lf %lf", &a, &b);

    printf("a + b = %lf\n", a + b);
    printf("a - b = %lf\n", a - b);
    printf("a * b = %lf\n", a * b);
    printf("a / b = %lf\n", a  / b);
    printf("sin(a)= %lf\n", sin(a));
    printf("cos(b)= %lf\n", cos(b));
    printf("sqrt a= %lf\n", sqrt(a));

    return 0;
}