Solve an equation with matrices

Rh=0.0282

Tc its my variable

Too - matrix 1x200

Tii - matrix 1x200

q - matrix 1x200

dTlm=(((Tc-Too)-(Tc-Tii))./(log((Tc-Too)./(Tc-Tii))));

solve=solve(q=dTlm./Rh);

I wanto top know the value of:

Tc(1) for q(1), Tii(1), Too(1).

Tc(2) for q(2), Tii(2), Too(2).

.

.

Tc(200) for q(200), Tii(200), Too(200).

Someone knows how this works?

Answer 1

[Torsten]

syms tii too tc q rh
eqn = (tii-too) == q*rh*log((tc-too)/(tc-tii));
tc = solve(eqn,tc);
Tc = double(subs(tc,[tii,too,q,rh],[Tii,Too,Q,Rh]))

where Tii, Too, Tc, Q, Rh are your numerical objects (4 matrices of size 1x200 (Tii,Too,Tc,Q) and one scalar (Rh))

[Miguel Fernandes]

Thanks a lot for the help!

[Miguel Fernandes]

Oh isn´t working, the coomand window give me this:

Warning: Solutions are valid under the following conditions: -pi < imag((tii - too)/(qq*rh)) & imag((tii - too)/(qq*rh)) <= pi. To include

parameters and conditions in the solution, specify the 'ReturnConditions' value as 'true'.

> In solve>warnIfParams (line 482)

In solve (line 357)

In Teste_Otim_2 (line 142)

[Torsten]

If you change the equation to

eqn = (tc-tii)*exp((tii-too)/(q*rh)) == tc-too;

the warning messages should vanish.