HP Prime Define: Use with solve, etc.  Printable Version + HP Forums (https://archived.hpcalc.org/museumforum) + Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum1.html) + Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum2.html) + Thread: HP Prime Define: Use with solve, etc. (/thread253725.html) 
HP Prime Define: Use with solve, etc.  Helge Gabert  10232013 Here is a question: If I define a function in "Function" App, I can use that within solve() in CAS view; no problem. e.g., solve(F2(x)=0,x) returns the solution If F2(X)=COSH(X)+9 returns {LN(4*sqrt(5)+9 , . . . } However, if I define a function with "Define", it doesn't work. e.g., solve(MYFUNC(x or X or 'X' or " 'X' ")=0,x (or variants)) returns {}. So how do I get a userdefined function (other than builtin F0,...F9) to work inside CAS commands? Thanks!
