5
$\begingroup$

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 ?

$\endgroup$
8
$\begingroup$

The input

 evaluate x^3-x^2-x-1 at 1.6

seems to work. Here is the link. Here is an image:

enter image description here

$\endgroup$
7
$\begingroup$

Asking politely:

please compute x^3-x^2-x-1 at x=1.6

did the work for me.

enter image description here

$\endgroup$
  • 7
    $\begingroup$ Indeed. I removed the "please" and it did not work :) $\endgroup$ – Lord Soth Apr 1 '13 at 23:43
  • 5
    $\begingroup$ It's rather charming to see such an insistence on manners. $\endgroup$ – mikoyan Aug 25 '13 at 9:30
3
$\begingroup$

You could do it like this:

http://www.wolframalpha.com/input/?i=evaluate+x%5E3-x%5E2-x-1+at+x+%3D+1.6

However, you could also do a table like this:

http://www.wolframalpha.com/input/?i=Table%5B%28x%5E3-x%5E2-x-1%29%2C+%7Bx%2C+0%2C+16%2C+1.6%7D%5D

$\endgroup$
2
$\begingroup$

"evaluate x^3-x^2-x-1 at x=1.6" works for me.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.