solve() problems

[HansB]

(06-05-2021 06:17 AM)rawi Wrote:  You have to tell the calculator for what variable you want to solve.
So if you put in solve(x-3=1,x) you get the right answer {4}.

Thank you, but this is not happening for me.
If I input solve(x-3=1,x), with lower-case x, I get a Syntax Error.
If I input solve(X-3=1,X), with upper-case X, I get {X}, not {4}.
The same happens without specifically giving the Var.
Help says one syntax is: solve(Expr,[Var]), so Var should be optional, and there is no dis-ambiguity about which var should be solved.

Actually the same happens on the HP Prime Lite app I just installed on my Android phone.

Apart from solve() function apparently not working, I find the Help examples misleading, because using one as written gives a Syntax Error (due to the lower-case x in the example), and confusing, because use of a small superscript 2, which the x^2 key does not deliver.