How do I get MathCAD to solve sets of differential equations with circular equation definitions?
By expanding the equations to the below, I managed to get Mathcad to solve it.
But I'd really like to be able to have MathCAD solve the original set of equations as shown below. As you can see, it's complaining that the red-boxed functions are undefined. The specific error message is "This variable is undefined. Check that the label is set correctly."
I'm honestly impressed that MathCAD can solve the expanded of equations which are still circular, but I'm confused why it won't accept the second, unexpanded set.