Solving Equations
Solving Equations
(OP)
I know some solving methods. But so far have been unable to write a fast converging algotithm for the problem.
I am working in steam properties IAPWS-95 and 97 plugin for MathCad and Vissim. The problem is solving two equations of two unknowns. I.E. pressure = p(t,d) and entropy = s(t.d) given pressure and entropy I have to search for t and d. The function p(t,d) is a 64 term equation and quite a few terms have factors of a*e^f(t,d)
Any sugestions on a fast converging algorithm?
I am working in steam properties IAPWS-95 and 97 plugin for MathCad and Vissim. The problem is solving two equations of two unknowns. I.E. pressure = p(t,d) and entropy = s(t.d) given pressure and entropy I have to search for t and d. The function p(t,d) is a 64 term equation and quite a few terms have factors of a*e^f(t,d)
Any sugestions on a fast converging algorithm?





RE: Solving Equations
TTFN
RE: Solving Equations
The code can made to work with most any programe that alows plugins to be writen in C or C++.
RE: Solving Equations
"steam tables", "backward equations", "p(v,s)", entropy, for example.
Here is one link from a quick search
http://www.iapws.org/release.htm
rvsvp
RE: Solving Equations