%@P:tableau \begin{MonTableau}{3}{6.5}{1} \small \TabNewCol{0} \rTabPut{B}{-.75}{.25}{$x$} {\footnotesize\rTabPut{B}{-.75}{.15}{\TabTitre{Sgn.}{x^2(x-1)}} \footnotesize\rTabPut{B}{-.75}{.15}{\TabTitre{Sgn.}{x^2-2}} \footnotesize\rTabPut{B}{-.75}{.15}{\TabTitre{Sgn.}{f(x)\!\!-\!\!(x\!\!-\!\!1)}}} \TabNewCol{0} \rTabPut{Bl}{.10}{.25}{$-\infty$} \TabNewCol{.20} \rTabPut{B}{0}{.25}{$-\sqrt{2}$} \rTabPut[1]{B}{0}{.4}{} \rTabPut[2]{B}{0}{.4}{\TabZ} \rTabPut[2]{B}{0}{.4}{\TabZ} \TabNewCol{.40} \rTabPut{B}{0}{.25}{$0$} \rTabPut[2]{B}{0}{.4}{\TabZ} \rTabPut[1]{B}{0}{.4}{} \rTabPut[2]{B}{0}{.4}{\TabZ} \TabNewCol{.60} \rTabPut{B}{0}{.25}{$1$} \rTabPut[2]{B}{0}{.4}{\TabZ} \rTabPut[1]{B}{0}{.4}{} \rTabPut[2]{B}{0}{.4}{\TabZ} \TabNewCol{.80} \rTabPut{B}{0}{.25}{$\sqrt{2}$} \rTabPut[1]{B}{0}{.4}{} \rTabPut[2]{B}{0}{.4}{\TabZ} \rTabPut[2]{B}{0}{.4}{\TabZ} \TabNewCol{1} \rTabPut{Br}{-.15}{.25}{$+\infty$} \rput(.10,.5){$-$}\rput(.3,.5){$-$}\rput(.5,.5){$-$} \rput(.7,.5){$+$}\rput(.9,.5){$+$} \rput(.10,1.5){$+$}\rput(.3,1.5){$-$}\rput(.5,1.5){$-$} \rput(.7,1.5){$-$}\rput(.9,1.5){$+$} \rput(.10,2.5){$-$}\rput(.3,2.5){$+$}\rput(.5,2.5){$+$} \rput(.7,2.5){$-$}\rput(.9,2.5){$+$} \end{MonTableau}