Hello, I would appreciate your help.

I have an f(x) function with x as the variable. I then gave x a value and I am trying to define a new value finding the root of the f(x).

Which function should I use to find the root? I do not find it in the functions menu?

Thanks.....Adriana

Adriana,

Try the solve function.

[LIVE width=275 height=312]http://smath.info/live/?file=2943[/LIVE]

There is considerable discussion of the limitations of solve() on the forum so if you encounter any problems try searching the posts.

Good luck.