int main(void)
{
int qty; //Quantity of washer
double weight, //Weight of each washer, to get from other parameters
volume, //Volume, to get from rim area and thickness
density, //density of material (either a constant or a input
d1, //inner diameter (raw input)
d2, //outer diameter (raw input)
area, //area to get from diameters
thickness; //thickness of a drum (raw input)
printf("Please input inner diameter and input outer diameter in centimeter in following format: [inner diameter],[outer diameter]\n");
scanf("%lf,%lf" , &d1, &d2);
//printf("%lf and %lf", d1, d2);
printf("Please input thickness of the drum in centimeters.\n");
scanf("%lf", &thickness);
printf("Please input density of the material in g/cm^3.\n");
scanf("%lf", &density);
printf("Please input quantity of the washer.\n");
scanf("%d", &qty);
area = circle_area(d2)-circle_area(d1);
volume = area * thickness;
weight = volume * density;
printf("the weight of %d washers is %lf g.", qty, qty * weight);
return 0;
}
void do_circle(void) {
double radius, area;
printf("Please enter the radius of the circle: ");
scanf("%lf", &radius);
area = circle_area(radius);
printf("The area of a circle with radius %.2lf is %.2lf\n", radius, area);
}//do_circle
int main(){
double length,area,volume,r,h;
printf("input circle radius\n");
scanf("%lf", &r);
length = circle_length(r);
printf("length: %.2f\n",length);
area = circle_area(r);
printf("circle_area: %.2f\n",area);
area = sphere_area(r);
printf("sphere_area: %.2f\n", area);
volume = sphere_volume(r);
printf("sphere_volume: %.2f\n", volume);
printf("input height\n");
scanf("%lf", &h);
volume = circle_column_volume(r,h);
printf("circle_column_volume: %.2f\n",volume);
}
double circle_column_volume(double r, double h){
return circle_area(r) * h;
}
