hi fellows, i have been reviewing a paper on equation of state where i have to find a relation between pressure and density using the ideal form of
P=@*r, where P=pressure and r=density
now i have got both P and r as a function of parameter t.
and i have drawn a parametric graph of p=p(r)
it's sort of a straight line as expected and what i need to do now is to find a linear or non linear relationship that best explains the pressure and density relationship. in other words finding that @ in P=@r relationship.
can you plz tell me how can i do it?
from the graph tracing the slop or from the formulas ?
regrads in advance