Needa Ya help with Mathcad. I'm trying to solve differential equation and getting troubled with that. (See attachment: http://sklep.profliz.pl/trash/mth.rar at yellow highlited region).
Mathcad says that it has too few initial conditions, but when I use sign (') [Ctrl+F7] for derivative it returns an error like that: "This value must be a function but has the form:any1".
What seems to be a problem? Any suggestions? It's obvious that initial conditions are ok and are sufficient to solve this analytically.
Thanks in advance!