HP Prime undef for Limes. Maybe a Bug?

[CyberAngel]

(10-14-2018 04:58 PM)Albert Chan Wrote:  Hi, roadrunner

I suggest not using x for the symbolic local variable.
Preferably some name that will never be used ...

limit_exact(x + y, x, 1, 0) ==> y+1, OK
limit_exact(x + y, y, 1, 0) ==> 2, BAD

Code:


#cas
exact_limit(Expr,Var,Val,Dir):=
BEGIN
  LOCAL ¬x;
  assume(¬x,symbol);
  limit(subst(Expr,Var=¬x),¬x,exact(Val),Dir);
END;
#end

Try that with any example.
CHAR(172) is that "hook" character.