Hi Dave,

There is no need to do that in floating point!
Do you know how to divide and multiply binary? If you do you know all there is to know. I bet you don't need 10 decimals accuracy, so fixed point calculations will do just as well.

To give you a small hint. Multiplying with 17.5 is exactly the same as mulitplying with 35 and then divide by 2, which is shifting the number 1 bit to the right.

Good luck