How to vary coefficients in F(x,y) box of Runge-kutta, for each time I run.

Question

In Runge Kutta, we are given a F(x,y) array of stings to write right side of equation. But my problem is I have coefficients that I want to vary, and thus have just one control to change value in each equation. How would F(x,y) box know the value of these coefficients?
These are the equations
dC(3) = 1/vg*(W*Koh - Ku_oh*C(1)*C(3) - Ks_oh*C(2)*C(3) - Koh_oh*C(3)^2);
dC(1) = 1/vg*(-Ku_oh*C(1)*C(3));
dC(2) = 1/vg*(A1*Ku_oh*C(1)*C(3) - Ks_oh*C(2)*C(3) - (Ds/r^2)*(C(2) - C(6)/Hs));
dC(4) = 1/vg*(Ko3*W - (Do3/r^2)*(C(4) - C(5)/Ho3) - Ko3_o3*C(4)^2);
dC(5) = 1/vw*((Do3/r^2)*(C(4) - C(5)/Ho3) - Ksl_o3l*C(
6)*C(5) - Ko3l_o3l*C(5)^2);
dC(6) = 1/vw*((Ds/r^2)*(C(2) - C(6)/Hs) - A2*Ksl_o3l*C(6)*C(5));
Where Ks', Ds', Hs' and As' have constant value for each run. So how can i have centralized control on these coefficients, and still use runge kutta.
Attachments:
Corona.vi ‏61 KB
function_dC.doc ‏27 KB

Answer 1

Here are the beginning to the edits. It is enough to get the idea. You should extend the coding to include all the variables. Care should be taken with the variable names so that you are searching for a variable named V it does not replace a variable named VM to get [stuff]M .
Attachments:
Corona[2].vi ‏91 KB