Hello, I am beginner of mathematica. Today I tried to test plot function and I couldn't see my plot .
How can I see that?
Eventually, the problem was resolved.
f[t_] := t^2 Plot[f[t], {t, -2, 2}]
When I read your comment i stayed with the next question, why does your chart is different from a parable", I did it with the following code, and indeed i graph a parable, i am showing you what I did.
Hello luis and thanks for your reply,
I posted wrong graph image when I tested Piecewise function (https://reference.wolfram.com/language/ref/Piecewise.html).
Thank you for pointing out the mistake
f[t_] := Piecewise[{{t^2, t < 0}, {t, t > 0}}]
Plot[f[t], {t, -2, 2}]