I am writing a program for a slow micro controller. I have to calculate the equation below many times. The division and multiplication are very time consuming so I am looking to convert at least a part of the equation to a compile time constant. Can you please help me to figure out how to factor out the currently known constants? Here is the equation
In code:
((A / (var / B)) / C)
In math I beleive it should be: $$\frac{\frac{A}{\frac{var}{B}}}{C}$$
So, the only variable element here is the var and every thing else is numerical constants.
Is it possible to factor A, B and C as a constant D and at the end do something like:
ANSWER = var * D