Antoine Pairet schrieb: > Thanks for the quick answer. However it is not want I need. Maybe I was > not clear enough. > > >> \begin{psgraph}[Dy=1.000,Oy=-11.444,Ox=4]{->}(4,0)(4,-2)(14,4){9cm}{5cm} \begin{psgraph}[dy=1cm,Dy=0.010,Oy=-11.444,Ox=4]{->}(4,0)(4,-2)(14,4){9cm}{5cm} set Dy with the correct value Herbert