How to define a dependent variable for differentiaion?
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I have a variable A which is dependent on x, but I don't know the expression yet.
I have a differential equation dA/dx which is given as
dA_x = (T*b-E*Q*diff(C_s,x))/(E*S);
All the entities except C_s are constants. I can get A by integrating this equation.
A = int(dA_x,x);
But the problem lies with the differential expression of C_s which is given by
C_s = (M-2*A*E*Q)/(2*E*I);
Since A is not yet defined as a function or dependent variable of x, the differentiation results in 0.
How do I solve this?
I'm not looking for a numeriacal answer, I just need a symbolic expression.