Help with ODESolve

[RonRoberts]

I'm trying to learn how to use MathCad's ODESolve function but I find my self stuck in very short order and MathCad's help doesn't seem to clarify things much.

In the sample problem I have attached I get a message that the Variable is Undefined in the ODESolve statement. I think I followed the example in Mathcad correctly and I can't figure out what it's telling me.

Any Mathcad Guru's that can look at the 6 lines of code I'm playing with?

Thanks

ron

 

[RonRoberts]

Regarding my first post on the ODESolve. I figured out how to solve the problem with "Given" and "Find".