I have an issue with the dimensions of density, variable roe, changing after I define it.
I defined roe := 2.62x10^-12xkg/m^3.
When I used in a calculation I did not get the result I was expecting, especially with the wrong units.
So, I displayed the value of roe right below my definition and the units changed;
I got: roe = (2.62x10^-21)x1/kg^2
Where did this come from?
I ended up defining roe in terms of slugs/ft^3 and the equations were correct then on.
I entered: roe := (5.084x10^-15)xslug/ft^3
When I then displayed the value of roe in English units I got: roe = (2.62x10^-12)xkg/m^3
just like it should be. The following equations are solved correctly.
Question: what gives? I attached the actual Mathcad file.
