Why does dividing a float by an integer return 0.0?

Question

So if I have a range of numbers \'0 - 1024\' and I want to bring them into \'0 - 255\', the maths would dictate to divide the input by the maximum the input will be (1024 in

Answer 1

In your case n/1024 results in 0 as you are doing integer division. To overcome this you can cast n to float. This will give you a result between 0.0 and 1.0 next you multiply with 255 and cast the result back to integer. Also you need to declare scale as int

int scale;
int n = 80; 
scale = (int)(((float)n/1024) * 255);