TITLE: Wolframalpha - how to get value of function in a specific point?
QUESTION [6 upvotes]: For example , given this function  - 
$f(x) = x^3-x^2-x-1$
and I want to check it in the point $x=1.6$.
What should I have to write in the command line of wolframalpha in order to get it  ?

REPLY [8 votes]: Asking politely:
please compute x^3-x^2-x-1 at x=1.6

did the work for me.